n. rolling, treeless plain in Siberia and arctic North America
E.g. Underneath the tundra is the active layer, a coat of peaty, semi-decomposed organic matter that passes for soil.
n. state of violent agitation; eddying motion; unstable flow of a liquid or gas; state of violent disturbance and disorder
E.g. They aim to protect assets rather than chase returns, so short-term turbulence has less of an effect.
n. toll highway; an expressway on which tolls are collected
E.g. A toll road, also known as a toll way or turnpike, is a road for which a driver pays a fee for use.
n. small branch or division of a branch
E.g. Pretty soon I heard a twig snap down in the dark amongst the trees - something was a stirring.
v. turn in the opposite direction; form into a spiral shape
E.g. It was to twist it up into a sort of knot, and then keep tight hold of its right ear and left foot, so as to prevent its undoing itself.
n. wealthy and powerful businessperson or industrialist; magnate
E.g. A new trial of the jailed former oil tycoon is set to begin Tuesday.
v. represent; embody the essential characteristics of or be a typical example of
E.g. Since most employers in USA are white, the analysis of the ways they typify employees is an important component of understanding labor market.
a. supersonic; higher in frequency than the range of sound perceptible to the human ear
E.g. Jamster offer several different frequency of ultrasonic ringtone for download.
a. wave lengths shorter than light but longer than X rays
E.g. Glass is almost perfectly opaque to deep ultraviolet, which is why it's hard to get a tan through a window.
a. uniform; in complete agreement
E.g. At last we got the unanimous decision.
a. unendurable; so unpleasant, distasteful, or painful as to be intolerable
E.g. I wouldn't be sitting there because I'm in unbearable pain.
a. violent; not restrained or controlled
E.g. They observed that, throughout history, experiments in unbridled democracy led to chaos.
a. continuous, without interruption; intact
E.g. We lived together in unbroken harmony for twenty years
v. remove the cover from; expose; disclose
E.g. We could have Mandarin uncover some secret, magic thing which makes him all powerful.
n. university student who has not yet received a first degree
E.g. In some educational systems, undergraduate education is post-secondary education, not equal to the level of a bachelor's degree.
a. under the level of the ground; buried
E.g. I speak with several years experience actually working in underground mines.
v. weaken by wearing away base or foundation; injure or impair; dig a mine or tunnel beneath
E.g. What we should not allow this moment to undermine, is our commitment to South Africa, to the constitution and the reconstruction.
ad. under or below an object or a surface; lower down on the page
E.g. The skin underneath is constantly breaking down and is very painful.
v. take on; embark on; assume
E.g. Can we expect mini robots to undertake major tasks?
n. task or assignment undertaken; career
E.g. John was out of the town, it was a vain undertaking for us to attempt to catch him.
a. submarine; beneath the surface of the water
E.g. One of the boys who has the ability to survive underwater, is missing from the hospital.
a. without alteration or misrepresentation
E.g. His judgment was undistorted by emotion; we all trusted him.
v. release; cause the ruin or downfall of; cancel or reverse an action
E.g. 'A knot!' said Alice, always ready to make herself useful, and looking anxiously about her. 'Oh, do let me help to undo it!'
ad. unquestionably; without doubt; certainly
E.g. She's against tough competition, but this award will give her undoubtedly.
a. unjust; contrary to laws or conventions, especially in commerce
E.g. Regulators are considering new ways to fight unfair and deceptive practices.
ad. unluckily; by bad luck
E.g. I want a smoke, Jane, to comfort me under all this; and unfortunately I have neither my cigar-case, nor my snuff-box.
n. sameness or consistency; freedom from variation or difference
E.g. It demands an approximately equal standard of life for all human beings and probably a certain uniformity of education.
a. having no residents; unsettled; unoccupied
E.g. Ferndean then remained uninhabited and unfurnished, with the exception of some two or three rooms fitted up for the accommodation.
a. without an equal; being the only one of its kind
E.g. You have to face a problem unique to coastal areas.
v. take something off a container
E.g. Hi, it is the time to unload the truck.
a. without equal or rival; unparalleled; peerless
E.g. However, there are several opinions that remain unmatched.
v. unwrap; unfold; remove the contents of
E.g. I unpack the presents at birthday party.
ad. without question; beyond doubt
E.g. Its international credibility has been unquestionably damaged.
v. undo or ravel knitted fabric of; separate and clarify; solve
E.g. The problem I am trying to unravel is more complex than any others.
a. unchecked; free; marked by uncontrolled excitement or emotion
E.g. Tens of thousands of car accidents are believed caused every year by unrestrained pets, though no one has solid numbers.
a. not restricted or confined; open; unrestrained
E.g. Some countries, such as Germany would prefer an almost unrestricted market so that their consumers could get the best bananas at the lowest prices.
a. unprincipled; lacking honesty
E.g. Some asylum-seekers give their papers to unscrupulous people-smugglers to help them across borders and never get them back again.
ad. unprincipled; immoral; without scruples
E.g. She unscrupulously uses her charm to make men do what she wants.
a. selfless; self-forgetting; generous or altruistic
E.g. Mary, you know me for your friend, and for your unselfish friend, too.
n. violent disturbance; sudden, violent disruption or upset
E.g. However, if a compromise cannot be found soon, political upheaval is unavoidable.