Common Prefixes and Their Meanings

Front

un-

Back

not: unhappy, unclear

Front

re-

Back

again: redo, rewrite

Front

dis-

Back

opposite: dislike, disconnect

Front

pre-

Back

before: preview, predict

Front

mis-

Back

wrong: misunderstand, misplace

Front

inter-

Back

between: interact, international

Front

sub-

Back

under: submarine, submerge

Front

trans-

Back

across: transport, translate

Front

auto-

Back

self: autograph, automatic

Front

anti-

Back

against: antibiotic, antidote