abolish v. cancel; put an end to; destroy completely | 
accomplish v. succeed in doing; bring to pass; achieve; reach the end of; complete | 
accurate a. capable of providing a correct reading or measurement | 
announce v. make something known or tell people about something officially; proclaim | 
anxious a. worried and nervous; uneasy about an uncertain event or matter | 
approach n. access; method | 
approval n. official approbation; endorsement; act of approving | 
approximate v. come close or be similar to something in quality, nature, or quantity; come near | 
argument n. a discussion in which reasons are advanced for and against some proposition or proposal | 
avoid v. shield away from; prevent | 
briskly ad. in a brisk manner | 
cease v. stop; terminate; put an end to; discontinue | 
claim n. demand for something as rightful or due | 
conclude v. enclose; reach as an end of reasoning; make final determination ; judge or decide; bring to an end | 
conflict n. fight; struggle; incompatibility of dates or events | 
consistent a. being in agreement with itself; always behaving or happening in a similar | 
context n. circumstance | 
convince v. overpower; force to yield assent to truth; satisfy by proof; prove guilty | 
culture n. all the knowledge and values shared by a society ; foster; raising of plants or animals | 
decade n. a group of ten, especially a period of ten years | 
dissatisfied a. in a state of sulky dissatisfaction | 
dominate v. monopolize; command; rule; prevail; be prevalent in | 
drowsy a. dull with sleepiness; showing lack of attention | 
edible a. eatable; substance that can be used as food | 
effortless a. requiring or apparently requiring no effort | 
equivalent a. interchangeable; comparable; equal, as in value, force, or meaning | 
escalate v. rise; increase in extent or intensity | 
establish v. set up or found; build | 
evaluate v. judge or calculate the quality, importance, amount, or value of something | 
evidence n. something which makes evident or manifest; any mode of proof | 
exhaust n. gases ejected from an engine as waste products ; use up the whole supply of | 
expansion n. growth; extent or amount by which something has expanded | 
expectation n. anticipating with confidence of fulfillment | 
explain v. make clear the reason of | 
express v. put thought into words; utter or state | 
extend v. add to something in order to make it bigger or longer | 
familiar a. well known or easily recognized | 
frequent v. do one's shopping at; do business with; be a customer or client of | 
gigantic a. exceedingly large; huge; very large or extensive | 
gist n. most essential or most vital part of some idea or experience; central idea | 
glare n. light; brightness; fierce or angry stare | 
harsh a. rough; coarse; severe; unpleasantly stern | 
heroic a. showing extreme courage; especially of actions courageously undertaken in desperation; of behavior that is impressive and ambitious in scale or scope | 
hesitate v. pause or hold back in uncertainty or unwillingness | 
hilarious a. by or causing great merriment or happiness; gay or merry | 
historic a. having importance or significance in history; belonging to the past; historical | 
horizontal a. flat; level; parallel to or in a base line | 
hostile a. unfriendly and not liking something; showing the disposition of an enemy | 
huddle v. crouch or curl up ; mass; heap;  crowd or draw together | 
identify v. establish or indicate who or what is; find out | 
illegible a. incapable of being read because of being unclear | 
immigrate v. move into another country to stay there permanently | 
influence n. power affecting person or thing; effect of one thing on another; flowing in or upon; influx | 
investigate v. explore; observe or inquire into in detail; examine systematically | 
navigate v. steer; direct; follow a planned course on, across, or through | 
opposed a. having an opponent; averse of | 
ordinary a. not exceptional in any way especially in quality or ability or size or degree; lacking special distinction, rank, or status | 
passage n. the act of passing from one state or place to the next | 
persuade v. advise; counsel; urge the acceptance or practice of; convince | 
primary a. of first rank or importance or value; essential or basic | 
recently ad. in the recent past | 
reference n. act of referring or consulting; remark that calls attention to something or someone | 
review v. study again something, in preparation for an exam, practice to refresh memory | 
revolt v. organize opposition to authority; make revolution | 
scarce a. hard to find; absent or rare; limited | 
significant a. fairly large; important in effect or meaning | 
source n. point of origin, such as spring, of stream or river; one that causes, creates, or initiates | 
summarize v. give a brief statement of the main points of something | 
superior a. greater rank or quality than other people or things of the same type; excellent | 
tension n. action of stretching something tight; anxiety; feelings of hostility | 
tolerate v. endure; withstand; allow without prohibiting or opposing; permit | 
tremble v. shake involuntarily, as with fear, cold, or weakness; quake; quiver; shiver; shudder | 
unexpected a. not expected or anticipated | 
unfamiliar a. not known or well known | 
vertical a. upright in position or posture |