| | abandon | lacking restraint or control; feeling of extreme emotional intensity; unbounded enthusiasm | 
| abandoned | recklessly unrestrained; deserted; left to destruction | 
| abandonment | giving up completely; freedom from constraint | 
| abase | humiliate; lower or depress in rank or esteem | 
| abash | embarrass; make ashamed or uneasy; disconcert | 
| abate | subside; decrease; become less in amount or intensity | 
| abbreviate | make shorter; reduce to shorter form intended to represent full form, as for word or phrase | 
| abdicate | give up, renounce, abandon, lay down, or withdraw from, as a right or claim | 
| aberrant | abnormal;  markedly different from an accepted norm | 
| abet | aid, usually in doing something wrong; encourage | 
| abeyance | suspended action; temporary cessation or suspension | 
| abhor | fill with horror and loathing; horrify; hate | 
| abide | endure; put up with; bear; tolerate | 
| abiding | lasting for a long time; enduring; permanent | 
| abjure | renounce upon oath; abandon forever | 
| ablution | washing or cleansing of the body, especially as part of religious rite | 
| abnegate | give up or surrender; deny something to oneself | 
| abnegation | repudiation; self-sacrifice; renouncing your own interests in favor of interests of others | 
| abolish | cancel; put an end to; destroy completely | 
| abolition | ending; act of abolishing; act of doing away with | 
| abominable | detestable; extremely unpleasant; very bad | 
| aboriginal | being the first of its kind in a region; primitive; native | 
| abortive | unsuccessful; failing to accomplish an intended objective; fruitless | 
| abrade | wear away by friction; scrape; erode | 
| abrasive | rubbing away; tending to grind down | 
| abridge | condense; shorten; reduce length of written text | 
| abrogate | abolish, do away with, or annul, especially by authority | 
| abscond | leave quickly and secretly and hide oneself, often to avoid arrest or prosecution | 
| absent | go away or leave ; missing; not present | 
| absenteeism | habitual not to appear, especially for work or other regular duty | 
| abstain | refrain; hold oneself back voluntarily from an action or practice | 
| abstemious | sparing or moderation in eating and drinking; temperate | 
| abstruse | obscure; profound; difficult to understand. | 
| abundant | plentiful; possessing riches or resources | 
| abundantly | in great numbers; in a plentiful or sufficient degree; plentifully | 
| abut | border upon; adjoin; touch or end at one end or side; lie adjacent | 
| abysmal | bottomless; very profound; limitless; very bad | 
| accede | agree; give consent, often at insistence of another; concede | 
| accelerating | increasing in speed | 
| acceleration | faster rate of improvement; rate of change of velocity with respect to time | 
| accentuate | emphasize; stress; pronounce with a stress or accent; mark with an accent | 
| accessible | easily approached or entered; obtainable; easy to talk to or get along with | 
| accident | event that takes place without one's foresight or expectation; sudden, and unexpected event | 
| accidentally | inadvertently; by chance; casually; fortuitously; not essentially or intrinsically | 
| acclaim | applaud; announce with great approval | 
| acclimate | accustom or become accustomed to a new environment or situation; adapt | 
| acclivity | upward slope, as of hill | 
| accolade | award of merit; expression of approval; praise | 
| accommodate | do a favor or service for; provide for; supply with; make suitable; adapt; allow for | 
| accommodating | helpful in bringing about a harmonious adaptation | 
| accomplish | succeed in doing; bring to pass; achieve; reach the end of; complete | 
| accost | approach and speak to boldly or aggressively, as with demand or request | 
| accouter | equip; provide with military equipment | 
| accretion | growth or increase in size by gradual external addition, fusion, or inclusion | 
| accrue | increase, accumulate, or come about as a result of growth; accumulate over time | 
| accumulation | increase by natural growth or addition; concentration | 
| accusation | indictment; charge of wrongdoing that is made against a person or other party | 
| accustomed | habitual to; used to; frequently practiced, used, or experienced; customary | 
| acerbity | bitterness of speech and temper; sourness or acidness of taste, character, or tone | 
| acetic | having properties of vinegar; sour | 
| achieve | gain with effort; accomplish; fulfill | 
| achievement | feat; accomplishment; award for completing a particular task or meeting an objective | 
| acidulous | slightly sour in taste or in manner; sharp; caustic | 
| acoustics | science of sound; quality that makes a room easy or hard to hear in | 
| acquaint | inform about; cause to come to know personally; make familiar | 
| acquainted | known by or familiar with another; informed or familiar | 
| acquiesce | assent; agree without protesting | 
| acquire | gain through experience or effort; gain possession of; locate with tracking system | 
| acrid | unpleasantly sharp or bitter to taste or smell; bitterly pungent | 
| acrimonious | bitter and sharp in language, tone, or manner | 
| acrophobia | fear of heights; abnormal fear of high places | 
| actively | energetically; vigorously; in an active manner; voluntarily, not passively | 
| actuarial | calculating; pertaining to insurance statistics | 
| actuate | put into motion or action; activate | 
| acuity | sharpness; acuteness of vision or perception; keenness | 
| acumen | mental keenness; quickness of perception | 
| adaptable | flexible; becoming or being made suitable to particular situation or use | 
| adaptive | having a capacity for adaptation; capable of adapting | 
| addendum | something added or to be added, especially a supplement to a book | 
| additional | further; extra; supplemental or added to | 
| addle | muddle; drive crazy; become confused | 
| adept | expert at; very skilled; having or showing knowledge and skill and aptitude | 
| adherent | person who adheres; one who follows or upholds a leader, party, cause | 
| adhesive | glue; paste ; substance that unites or bonds surfaces together | 
| adjoin | be next to; be contiguous to; border on | 
| adjudicate | hear and settle a case by judicial procedure | 
| adjunct | something added on or attached generally nonessential or inferior | 
| adjure | appeal to or entreat earnestly; command or enjoin solemnly, as under oath | 
| administer | govern; supervise; give or apply medications | 
| admiration | favorable judgment; feeling of pleasure, wonder, and approval | 
| admittedly | doubtlessly; in an acknowledged manner; confessedly | 
| admonish | warn; counsel someone against something to be avoided | 
| admonition | gentle or friendly reproof; cautionary advice or warning | 
| adorn | enhance or decorate with or as if with ornaments | 
| adornment | embellishment; decoration; something that beautifies or adorns; ornament | 
| adroit | skillful and adept under pressing conditions | 
| adulation | excessive flattery or admiration; unmerited praise | 
| adulterate | make impure by adding inferior or tainted substances | 
| adumbrate | give hint or indication of something; disclose partially or guardedly; overshadow; shade | 
| advance | proceed; move forward; improve; moving forward | 
| advanced | improved; highly developed or complex; ahead of the times; progressive | 
| advent | coming or arrival, especially of something extremely important | 
| adventitious | accidental; casual; not inherent but added extrinsically | 
| adverse | in opposing direction; harmful or unfavorable; acting or serving to oppose | 
| advocacy | support; active pleading on behalf of something | 
| aerie | nest of bird, such as eagle, built on a cliff or other high place | 
| aesthetic | elegant or tasteful; of or concerning appreciation of beauty or good taste | 
| affable | easily approachable; warmly friendly | 
| affect | have an emotional or cognitive impact upon | 
| affection | fondness; tender feeling toward another; fondness | 
| affectionate | having affection or warm regard; loving; fond; kindly inclined; zealous | 
| affinity | natural attraction, liking, or feeling of kinship; relationship by marriage | 
| affirmation | positive assertion; confirmation; solemn pledge by one who refuses to take an oath | 
| affix | fasten; append; add on; secure to something | 
| affluence | abundance; a plentiful supply of material goods; wealth | 
| affluent | having an abundant supply of money or possessions of value | 
| affront | insult; offense; intentional act of disrespect | 
| agenda | items of business at a meeting; list or program of things to be done or considered | 
| agglomeration | collection; heap; act or process of gathering into a mass | 
| aggrandize | increase scope of; extend; intensify; make greater in power, influence, stature, or reputation | 
| aggravating | irritating; annoying; making worse or more heinous | 
| aggregate | gather into a mass, sum, or whole; amount to | 
| aggressive | making assaults; unjustly attacking; combative; hostile; tending to spread quickly | 
| aggressiveness | feeling of hostility that arouses thoughts of attack; quality of being bold and enterprising | 
| aghast | struck by shock, terror, or amazement | 
| agility | mentally quick; moving quickly and lightly | 
| agitate | cause to move with violence or sudden force; upset; disturb | 
| agitation | anxiety; extreme emotional disturbance | 
| agnostic | one who is skeptical of existence of a god or any ultimate reality | 
| agrarian | pertaining to land or its cultivation; relating to agricultural or rural matters | 
| ajar | half-open; slightly turned or opened | 
| alacrity | cheerful promptness or willingness; eagerness; speed or quickness | 
| alchemy | medieval chemistry; magical or mysterious power or process of transforming | 
| alcove | nook; small, recessed section of a room | 
| algorithm | established procedure for solving problem | 
| alien | dissimilar, inconsistent, or opposed in nature; very different place, society, or person | 
| alimentary | providing nourishment; concerned with food, nutrition, or digestion | 
| allay | calm; pacify; reduce the intensity of; relieve | 
| allege | state without proof; assert to be true | 
| allegory | symbolic representation of abstract ideas or principles in narrative, dramatic, or pictorial form | 
| alliteration | repetition of beginning sound in poetry | 
| allocate | assign; distribute according to plan | 
| allude | refer casually or indirectly, or by suggestion | 
| allusion | indirect reference; symbolical reference or comparison; metaphor | 
| aloft | in or into a high place; high or higher up | 
| alternate | happening or following in turns; succeeding each other continuously; substitute | 
| altitude | elevation especially above sea level; height | 
| altruistic | unselfishly generous; concerned for others | 
| amalgamate | combine; unite in one body; mix or alloy a metal with mercury | 
| amass | collect; gather for oneself, as for one's pleasure or profit | 
| ambidextrous | capable of using either hand with equal ease | 
| ambience | particular environment or surrounding influence; atmosphere of environment | 
| ambiguous | unclear or doubtful in meaning | 
| ambivalence | state of having contradictory or conflicting emotional attitudes, such as love and hate | 
| amble | moving at an easy pace; walk slowly or leisurely | 
| ambulatory | able to walk; formed or adapted for walking; not stationary | 
| ameliorate | make or become better; improve; grow better | 
| amenable | responsive to advice or suggestion; responsible to higher authority; willing to comply with; agreeable | 
| amenities | convenient features; courtesies | 
| amiable | good-natured and likable; lovable; warmly friendly | 
| amicable | exhibiting friendliness or goodwill; not quarrelsome | 
| amid | in the middle of; among; surrounded by | 
| amity | friendship; peaceful relations, as between nations | 
| amorous | moved by sexual love; loving | 
| amorphous | formless; lacking shape or definition | 
| amphibian | able to live both on land and in water | 
| amphitheater | oval building with tiers of seats from central open space or arena | 
| amplify | broaden or clarify by expanding; intensify; make larger or more powerful; increase | 
| amputate | cut off part of body, especially by surgery; prune | 
| anachronistic | having time error in story; erroneous in date; in wrong time | 
| analgesic | serving to reduce sensibility to pain without loss of consciousness | 
| analogous | comparable; similar or alike | 
| anarchist | person who seeks to overturn established government; advocate of abolishing authority | 
| anathema | solemn curse; someone or something regarded as a curse | 
| ancestor | forefather; forebear; forerunner or predecessor | 
| ancestry | family descent; series or line of ancestors; lineage | 
| ancillary | serving as aid or accessory; auxiliary | 
| anecdotal | having the character of an anecdote; of short story of interesting or humorous incident | 
| angular | sharp-cornered; consisting of an angle or angles; stiff in manner | 
| animate | endowed with life; alive; living; animated | 
| animated | having life or vigor or spirit; filled with activity; in form of cartoon | 
| animus | feeling of enmity or ill will; attitude that informs one's actions; disposition | 
| annals | chronological record of the events of successive years | 
| annihilate | destroy completely; reduce to nonexistence | 
| annotate | comment; make explanatory notes | 
| announce | herald; give out; proclaim; make known publicly | 
| announcement | formal public statement; act of making known publicly | 
| annoy | disturb, especially by minor irritations; irritate | 
| annuity | annual payment of allowance or income; periodical payment, amounting to a fixed sum in each year | 
| annul | make or declare void or invalid; reduce to nothing | 
| anodyne | source of relaxation or comfort; medicine that relieves pain | 
| anoint | apply oil or similar substance to; put oil on during religious ceremony as a sign of sanctification or consecration. | 
| anomalous | deviating from normal or common order, form, or rule | 
| anomaly | irregularity; person or something that is unusual; departure from normal or common order | 
| anonymous | having no name; having unknown or unacknowledged name | 
| antagonism | active resistance; condition of being an opposing principle, force, or factor | 
| antecede | precede; go before in time, and sometimes in place, rank, or logical order | 
| antecedents | preceding events or circumstances that influence what comes later; ancestors or early background | 
| antediluvian | antiquated; extremely old and ancient; belonging to very ancient times | 
| anthology | book of literary selections by various authors | 
| anthropocentric | regarding human beings as the center of the universe | 
| anthropoid | manlike; resembling a human, especially in shape or outward appearance | 
| anthropomorphic | having human form or characteristics | 
| anticlimax | letdown in thought or emotion; decline viewed in disappointing contrast with previous rise | 
| antipathy | strong feeling of aversion; dislike | 
| antithesis | contrast; direct contrast; opposition | 
| anxious | eager; keen; worried; uneasy and apprehensive about an uncertain event or matter | 
| apathy | lack of caring; indifference | 
| aperture | opening; diameter of such an opening; hole | 
| apex | highest point; vertex; summit; climax | 
| aphasia | loss of speech due to injury or illness | 
| aphorism | definition or concise statement of principle; tersely phrased statement of truth or opinion | 
| apiary | place where bees and beehives are kept, especially where bees are raised for their honey | 
| aplomb | poise; self-confident assurance | 
| apocryphal | untrue; of questionable authorship or authenticity; erroneous; fictitious | 
| apogee | the highest point; point in orbit most distant from the body being orbited | 
| apolitical | having aversion or lack of concern for political affairs | 
| apologist | person who argues in defense or justification of something, such as doctrine, policy, or institution | 
| apostate | one who abandons his religious faith or political beliefs | 
| apotheosis | elevation to godhood; fact or action of becoming a god; an ideal example of something | 
| appall | depress or discourage with fear; grow faint or become weak | 
| apparition | ghostly figure; sudden or unusual sight; appearance; state of being visible | 
| appellation | name; title; act of naming; act of appealing for aid, sympathy | 
| append | attach; add as supplement or appendix | 
| appliance | durable goods for home or office use; device or instrument for household use | 
| apply | exert; put into service; avail oneself to; | 
| apportion | distribute; allot; give out as one's portion or share | 
| apposite | strikingly appropriate and relevant; well-suited | 
| appraise | estimate value of; evaluate, especially in official capacity | 
| apprehension | fearful or uneasy anticipation of the future; act of seizing or capturing; understanding | 
| apprenticeship | term during which one learns a trade from skilled worker; service or legal condition of an apprentice | 
| apprise | inform; give notice to; make aware | 
| approaching | impending; of the relatively near future; coming closer to another | 
| approbation | expression of warm approval; praise | 
| appropriation | funding;  money set aside for a specific purpose | 
| apropos | with reference or regard; in respect | 
| aptly | in a competent capable manner; in an apt or suitable manner | 
| aquatic | consisting of, relating to, or being in water | 
| aquiline | curved or hooked like an eagle's beak | 
| arable | fit for growing crops, as by plowing | 
| arbiter | person with power to decide a dispute; judge | 
| arboretum | place where different tree varieties are exhibited | 
| arcane | secret; mysterious; known only to the initiated | 
| archaeology | study of artifacts and relics of early mankind | 
| archaic | no longer current or applicable; antiquated | 
| archetype | prototype; original model or type after which other similar things are patterned | 
| archipelago | group of closely located islands | 
| architecture | art and science of designing and erecting buildings; buildings and other large structures | 
| ardent | displaying or by strong enthusiasm or devotion; passionate | 
| arduous | demanding great effort or labor; difficult | 
| arid | dry; lacking moisture, especially having insufficient rainfall to support trees or plants | 
| aristocracy | hereditary nobility; privileged class | 
| armada | a fleet of warships; a large group of moving things | 
| aroma | fragrance; scent; pleasant characteristic odor, as of a plant, spice, or food | 
| aromatic | fragrant or sweet-smelling; caused by fragrant odor | 
| arousal | act of awaking from sleep; arousing from what is like sleep | 
| arouse | excite; stimulate; awaken from or as if from sleep | 
| arraign | officially charge someone in a court of law | 
| arrears | being in debt; unpaid, overdue debt or an unfulfilled obligation | 
| arrogate | claim without justification; claim for oneself without right | 
| arroyo | deep gully; a dry gulch; brook or creek; watercourse | 
| arthritis | inflammation of a joint or joints | 
| article | essay; editorial; individual thing or element of a class | 
| articulate | expressing oneself easily in clear and effective language | 
| artifice | subtle but base deception; trickery; cleverness or skill; ingenuity | 
| artisan | manually skilled worker; craftsman, as opposed to artist | 
| artless | free of artificiality; natural; open and honest | 
| ascendancy | superiority or decisive advantage; domination | 
| ascetic | leading a life of self-discipline and self-denial; austere | 
| ascribe | inscribe or dedicate; attribute to a specified cause, source, or origin; assign as a quality | 
| aseptic | preventing infection; having cleansing effect | 
| ashen | ash-colored; very pale; consisting of ashes | 
| askance | with sideways or indirect look; Turned to side, especially of eyes | 
| askew | turned or twisted toward one side; at an angle | 
| aspect | distinct feature or element in a problem; a way in which something can be viewed by the mind | 
| asperity | sharpness of temper; roughness or harshness, as of surface, sound, or climate | 
| aspirant | one who aspires, as to advancement, honors, or a high position | 
| assail | assault; attack with or as if with violent blows | 
| assay | analyze; evaluate; examine by trial or experiment; put to test | 
| assembly | gathering; meeting; a group of persons gathered together for common reason | 
| assent | express agreement to what is alleged or proposed; accept | 
| assiduous | constant in application or attention; diligent; unceasing or persistent | 
| assimilate | incorporate and absorb into mind; make similar; cause to resemble | 
| assist | give help or support to, especially as a subordinate | 
| assistant | helper; person who assists or helps someone else | 
| assuage | ease or lessen pain; satisfy or appease | 
| astigmatism | eye defect that prevents proper focus | 
| astringent | causing contraction; having the effect of drawing tissue together; stern or austere | 
| astronomical | enormously large or extensive; relating to astronomy | 
| asunder | into separate parts or pieces; apart | 
| asymmetric | not identical on both sides of a dividing central line | 
| atavism | resemblance to remote ancestors rather than to parents; deformity returning after passage of two or more generations | 
| atavistic | displaying characteristics of previous cultural era or of previous ancestral form | 
| atheistic | denying existence of God; godless | 
| atrocity | brutal deed; atrocious condition, quality, or behavior; monstrousness | 
| atrophy | wasting away; decrease in size; reduction in the functionality of an organ caused by disease | 
| attach | fasten; annex; be in contact with | 
| attached | fastened together; joined by wall, especially by sharing a wall with another building; not freestanding | 
| attainment | something, such as an accomplishment or achievement; achievement | 
| attenuate | make slender, fine, or small; weaken; lessen density of | 
| attorney | lawyer; one who is appointed by another to act in his place or stead; proxy | 
| attract | draw to, or cause to tend to; engage or fix, as the mind, attention; invite or allure | 
| attribute | essential quality; reputation; honor | 
| attrition | gradual decrease in numbers; reduction in work force without firing employees; wearing away of opposition by means of harassment | 
| atypical | not normal; unusual or irregular; not representative of a group, class, or type | 
| audacious | fearlessly, often recklessly daring; bold | 
| audit | examination of accounts; adjustment or correction of accounts | 
| auditory | of or relating to hearing, the organs of hearing, or the sense of hearing | 
| auger | hand tool for boring holes; hollow drill used to take core samples of soil, ice | 
| augment | make greater, as in size, extent, or quantity | 
| augury | sign of something coming; art or practice of foretelling events by signs or omens | 
| aureole | the outermost region of the sun's atmosphere; halo | 
| auroral | characteristic of dawn; dawning, eastern, like new beginning; relating to the atmospheric phenomenon auroras | 
| auspicious | attended by favorable circumstances; marked by success; prosperous | 
| austere | strict or severe in discipline; severely simple and unornamented | 
| authenticate | prove genuine; establish authenticity of | 
| authoritarian | expecting absolute obedience; completely dominating another's will | 
| authoritative | having weight of authority; peremptory and dictatorial | 
| authority | jurisdiction; power to enforce laws, exact obedience, command, determine, or judge; government | 
| authorize | empower; give permission for; sanction | 
| autocrat | dictator; ruler having unlimited power | 
| autocratic | having absolute, unchecked power; dictatorial | 
| automaton | mechanism that imitates actions of humans | 
| autonomous | self-governing; not controlled by others or by outside forces; independent | 
| autonomy | independence; self-government or the right of self-government; self-determination | 
| auxiliary | helper, additional or subsidiary | 
| avalanche | great mass of falling snow and ice | 
| avarice | greediness for wealth; insatiable desire of gain | 
| aver | declare to be true; affirm | 
| averse | reluctant; disinclined; turned away or backward; unwilling | 
| aversion | firm dislike; turning away; avoidance of a thing, situation, or behavior because of dislike | 
| aviary | large cage, building, or enclosure in which birds are reared or kept | 
| aviation | art or science of flying; flight; aeronautics | 
| avid | greedy; eager for; marked by keen interest and enthusiasm | 
| avocation | activity taken up in addition to one's regular work or profession, usually for enjoyment | 
| avoidance | keeping away from or preventing from happening | 
| avow | declare openly; acknowledge openly, boldly, and unashamedly | 
| avuncular | in manner of uncle, pertaining to uncle; kind, genial, benevolent or tolerant | 
| awkwardly | in an uncomfortable, nervous or embarrassed way | 
| awry | in a position that is turned toward one side; away from correct course | 
| axiom | self-evident truth requiring no proof | 
| azure | sky blue; light purplish-blue | 
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