* baby - n. a newly born creature
* back - n. the part behind the front; ad. the other way from forward
* bad - ad. wrong; acting against the law; not good
* balance - v. to make two sides or forces equal
* ball - n. something round
* balloon - n. a device of strong, light material that rises when filled with gas lighter than air
* ballot - n. a piece of paper used for voting
* ban - v. to not permit; to stop; n. an official restriction
* bank - n. an organization that keeps and lends money
* bar - v. to prevent or block
* barrier - n. anything that blocks or makes an action difficult
* base - n. a military center; v. to establish as a fact ("Her research was based on experiments.")
* battle - n. a fight between opposing armed forces
* be - v. to live; to happen; to exist
* beat - v. to hit again and again
* beauty - n. that which pleases the eye, ear or spirit
* because - prep. for the reason that ("He left because he was sick.")
* become - v. to come to be
* bed - n. a sleeping place
* before - prep. earlier
* begin - v. to do the first part of an action; to start
* behavior - n. the way in which a person or animal acts (“The child’s behavior was bad because he fought with other children.”)
* behind - ad. at the back of; in back of
* believe - v. to think; to feel sure of; to accept as true; to trust
* belong - v. to be owned by; to be a member of
* below - ad. lower than
* best - ad. the most good
* betray - v. to turn against; to be false to
* better - ad. more good than
* between - ad. in the space or time that separates; from one to the other ("talks between two nations")
* big - ad. of great size; not small
* bill - n. a legislative proposal
* biology - n. the scientific study of life or living things in all their forms
* bird - n. a creature that flies
* bite - v. to cut with the teeth
* black - ad. dark; having the color like that of the night sky
* blame - v. to accuse; to hold responsible
* bleed - v. to lose blood
* blind - ad. not able to see
* block - v. to stop something from being done; to prevent movement
* blood - n. red fluid in the body
* blow - v. to move with force, as in air ("The wind blows.")
* blue - ad. having the color like that of a clear sky
* boat - n. something built to travel on water that carries people or goods
* body - n. all of a person or animal; the remains of a person or animal
* boil - v. to heat a liquid until it becomes very hot
* bomb - n. a device that explodes with great force; v. to attack or destroy with bombs
* bone - n. the hard material in the body
* book - n. a long written work for reading
* border - n. a dividing line between nations
* born - v. to come to life; to come into existence
* borrow - v. to take as a loan
* both - ad. not just one of two, but the two together
* bottle - n. a container, usually made of glass, to hold liquid
* bottom - ad. the lowest part of something
* box - n. something to put things into; a container, usually made of paper or wood
* boy - n. a young male person
* boycott - v. to refuse to take part in or deal with
* brain - n. the control center of thought, emotions and body activity of all creatures
* brave - ad. having no fear
* bread - n. a food made from grain
* break - v. to divide into parts by force; to destroy
* breathe - v. to take air into the body and let it out again
* bridge - n. a structure built over a waterway, valley or road so people and vehicles can cross from one side to the other
* brief - ad. short; not long
* bright - ad. giving much light; strong and clear in color
* bring - v. to come with something
* broadcast - v. to send information, stories or music by radio or television; n. a radio or television program
* brother - n. a male with the same father or mother as another person
* brown - ad. having the color like that of coffee
* budget - n. a spending plan
* build - v. to join materials together to make something
* building - n. anything built for use as a house, factory, office, school, store or place of entertainment
* bullet - n. a small piece of metal shot from a gun
* burn - v. to be on fire; to destroy or damage by fire
* burst - v. to break open suddenly
* bury - v. to put into the ground and cover with earth
* bus - n. a public vehicle to carry people
* business - n. one's work; buying and selling to earn money; trade
* busy - ad. doing something; very active
* but - conj. however; other than; yet
* buy - v. to get by paying something, usually money
* by - conj. near; at; next to ("by the road"); from ("a play by William Shakespeare"); not later than ("by midnight")