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Vocabulary Study Online By Level (VSOBL) is a Fast, Reliable, and Handy tool to prepare English exam vocabulary. (Available for all VIP accounts: US$2/Month). It has built-in word lists: 6000 IELTS words, 6000 TOEFL words, 5000 GRE words, and 3000 SAT words. You can load them by level with one click.
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suitable; modest.; honorable; meeting accepted standards | |
something that restricts or confines within prescribed bounds | |
sufficient; enough to meet a purpose | |
a small group of persons secretly united to promote their own interests |
something happens without design; chance; hazard; risk; danger | |
a small group of persons secretly united to promote their own interests | |
favoring traditional views and values; tending to oppose change | |
something taken for accepted as true without proof; taking over or taking possession of |
tank or pool or bowl filled with water for keeping live fish and underwater animals | |
make impure or unclean by contact or mixture; pollute; defile | |
suitable; modest.; honorable; meeting accepted standards | |
of bluish-green color; of pale blue to light greenish-blue |
tedium; dullness; state of being a bore, or the tendency to become tiresome and uninteresting | |
respire; inhale and exhale air | |
restrain; keep within close bounds; confine | |
skilled; experienced; having many social graces; polished or refined |
a natural appearance of coloured light in the sky, that is usually seen nearest the Arctic or Antarctic | |
someone who operates an aircraft | |
uninteresting and tiresome; dull | |
take in the meaning, nature, or importance of; grasp |
something added on or attached generally nonessential or inferior | |
very surprising or shocking | |
something produces a result; the basis for an action or response; a reason | |
unpopulated; providing no shelter or sustenance; devoid of inhabitants |
shut eyes briefly; wink | |
sufficient; enough to meet a purpose | |
widen; grow broad or broader | |
blend; fuse; merge |
a scientist who studies living organisms | |
a small room on a ship or boat where people sleep | |
widen; grow broad or broader | |
tunnel; hole in the ground made by an animal for shelter; moving through by or as by digging |
take in the meaning, nature, or importance of; grasp | |
stop; terminate; put an end to; discontinue | |
urgently needed; absolutely necessary; essential; acute; crucial; decisive | |
understandable; readily comprehended or understood; intelligible |