B
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 - ad. 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
behind - ad. at the back of; in back of
believe - v. to think; to feel sure of; to accept as true; to trust
bell - n. an instrument that makes a musical sound （"a church bell"）
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
blanket - n. a cloth cover used to keep warm
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"）
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 - ad. 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
behind - ad. at the back of; in back of
believe - v. to think; to feel sure of; to accept as true; to trust
bell - n. an instrument that makes a musical sound （"a church bell"）
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
blanket - n. a cloth cover used to keep warm
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"）