bifocals n. eyeglasses having two focal lengths, one for near vision and the other for far vision | 
bilingual a. using or able to use two languages, especially with equal or nearly equal fluency | 
binoculars n. a pair of tubes with glass lenses at either end to see things far away more clearly | 
biology n. science that studies living organisms n. all the plant and animal life of a particular region | 
biscuit n. a small, flat cake that is dry and usually sweet; cookie | 
boulevard n. a wide street in city, usually with trees on each side or along the centre | 
boundary n. dividing line that marks the edge or limit of something; border | 
briefcase n. portable, often flat case with a handle, used for carrying papers or books | 
brochure n. small book usually having paper cover; pamphlet | 
bulletin n. brief statement of facts; any public notice or announcement n. a periodical publication | 
calculator n. small machine that is used for mathematical calculations | 
candidate n. a person who is competing to get a job, prize, or honor | 
Capitol n. the government building in Washington where the Senate and the House of Representatives meet | 
capture v. take someone as a prisoner, or to take something into your possession, especially by force | 
cardigan n. knitted clothing, such as a sweater or jacket, that opens down the full length of the front | 
caribou n. a large deer with long horns with branches that lives in North America | 
caricature n. representation, like a picture, that is deliberately exaggerated to produce a comic effect | 
category n. group, class, or collection of things sharing a common attribute | 
cemetery n. place or ground set apart for the burial of the dead; graveyard | 
chameleon n. lizard that changes color in different situations | 
chandelier n. a decorative light that hangs from the ceiling with a number of bulbs or candles | 
chauffeur n. someone whose job is to drive a car for a rich or important person | 
chemist n. a scientist who specializes in chemistry | 
chimpanzee n. a small, very intelligent African ape with black or brown fur | 
civilize v. educate a society so that its culture becomes more developed v. improve someone's behaviour | 
cocoa n. a dark brown powder made from the crushed beans of a tree, used to make chocolate n. a sweet chocolate drink that is made with cocoa powder | 
coffee n. a dark brown powder with a strong flavour and smell that is made by crushing coffee beans n. a drink consisting of an infusion of ground coffee beans | 
collide v. come into conflict or opposition; conflict | 
combine v. join together to make a single thing or group; blend, fuse, or merge | 
comedian n. a person whose job is to make people laugh by telling jokes and funny stories | 
commemoration n. a ceremony to honor the memory of someone or something officially | 
commissary n. a government official with a particular responsibility n. a retail store, usually serve for people in the army or in prison | 
commitment n. a promise or firm decision to do something n. act of binding yourself  to a course of action | 
commotion n. a sudden, short period of noise, confusion, or excited movement | 
communication n. activity of communicating; conveying information, like message, letter, or announcement | 
companion n. a person you spend a lot of time with, often because of friends or travelling together; partner | 
comparison n. considering something similar or of equal quality to something else n. act of comparing two or more people or things | 
competitive a. wanting very much to win or be more successful than other people | 
complement v. make something else seem better or more attractive when combining with it | 
compliment n. a remark that expresses approval, admiration, or respect; praise | 
compromise v. accept that you will reduce your demands to reach an agreement with someone v. lower or weaken standards, risk harming something | 
concentrate v. bring to or direct toward a common center; unite more closely; gather into one body | 
concession n. something that is allowed or given up, often to end a disagreement; act of yielding | 
condominium n. an apartment building in which each apartment is owned separately | 
confiscate v. officially take private property away from someone, usually by legal authority | 
congestion n. act of gathering, heaping together, or forming a mass | 
conjecture v. guess, based on the appearance of a situation and not on proof | 
Connecticut n. a state in the northeastern US, a New England state | 
consideration n. act of thinking about something carefully | 
constellation n. a group of stars in the sky that appear to form a pattern and that have a name n. a group of famous people all together in one place |