boast v. show off oneself;  speak of with excessive pride | 
bomb n. a container filled with explosive, designed to explode v. fail to get a passing grade | 
bookkeeper n. a person who records the accounts or transactions of a business | 
bookshelf n. a shelf on which to keep books | 
bookstore n. a shop where books are sold | 
booth n. house or shed built for temporary occupation n. covered stall or temporary structure | 
bored a. uninterested because of frequent exposure v. (past tense) make a hole in something, especially with a revolving tool | 
brain n. organ or seat of intellect n. understanding or imagination | 
breath n. air that is inhaled and exhaled in respiration | 
breathe v. respire; inhale and exhale air | 
breeze n. light current of air; gentle wind; progress swiftly and effortlessly | 
brisk a.  keen or sharp in speech or manner; active, fast, and energetic | 
broom n. a long-handled brush of bristles or twigs, used for sweeping | 
button n. a knob on an equipment that is pressed to operate it n. a small disk or knob sewn on to a garment to fasten it | 
California n. a state in the western United States on the Pacific, the 3rd largest state | 
campaign n. battle; a series of actions advancing a principle | 
cancel v. revoke; call off; omit or delete | 
capitalize v. take the chance to gain advantage from v. provide a company with capital | 
caramel n. sugar or syrup heated until it turns brown, used as a flavoring or coloring for food | 
career n. profession or occupation; individual’s work and life roles over their lifespan | 
casserole n. a kind of stew or side dish that is cooked slowly in an oven | 
cauliflower n. a garden plant grown for its compact edible head of usually white undeveloped flowers | 
channel n. passage for water to flow through; bed of a stream or river n. route of communication or access | 
cheerleader n. someone who leads the cheers at a sporting event n. an enthusiastic and vocal supporter | 
cheery a. bright and pleasant; promoting a feeling of cheer | 
chestnut n. a glossy brown nut that may be roasted and eaten | 
chipmunk n. a burrowing ground squirrel, has cheek pouches and a light and dark stripe running down the body | 
chlorine n. a common nonmetallic element, a toxic, irritant, pale green gas | 
choice n. an act of selecting or making a decision a. appealing to refined taste, of very good quality | 
chord n. combination of three or more notes that blend harmoniously when sounded together | 
chorus n. a large organized group of singers, especially one that performs together | 
chronological a. arranged in order of time of occurrence | 
cinnamon n. an aromatic spice made from the peeled, dried, and rolled bark of a Southeast Asian tree | 
citizen n. a native or naturalized member of a state | 
civil a. having to do with citizens or the state a. courteous and polite | 
civilization n. culture, the stage of human social development | 
claim n. demand for something as rightful or due | 
clearance n. act of clearing; space cleared; permission to proceed or trust | 
climber n. someone who climbs as a sport, especially someone who climbs mountains n. a vine or similar plant that readily grows up a support or over other plants | 
cloth n. artifact made by weaving or knitting natural or synthetic fibers | 
clothesline n. a cord on which clothes are hung to dry | 
clothing n. a covering designed to be worn on a person's body | 
comfortable a. free from stress or conducive to mental ease; having peace of mind a. more than adequate | 
compete v. contest or fight with others who are trying to do the same | 
competition n. struggle; rivalry; act of competing as for profit or a prize | 
confident a. assured; having or marked by assurance | 
constant a. invariable or repeating; continually occurring; persistent | 
contagious a. infectious; of or relating to communicable diseases | 
contestant n. a person who participates in competitions | 
conversation n. oral exchange of opinions or ideas, informal dialogue |