Prefixes and Their Meanings

Front

ante

Back

before

Front

Antecedent

Back

happens before something else

Front

Antebellum

Back

before the war

Front

anti

Back

against

Front

Antidote

Back

works against illness

Front

Antibody

Back

remedy against poison

Front

bi

Back

two

Front

Bicycle

Back

vehicle with two wheels

Front

Bimonthly

Back

two times a month

Front

circum

Back

around