a person who backs a politician or a team etc.; all their supporters came out for the game; they are friends of the library
[ Syn: supporter , protagonist , champion , admirer , friend ]
someone who is an active supporter and advocate
a thief who steals goods that are in a store
[ Syn: shoplifter , lifter ]
an amplifier for restoring the strength of a transmitted signal
[ Syn: booster amplifier , booster station , relay link , relay station , relay transmitter ]
the first stage of a multistage rocket
[ Syn: booster rocket , booster unit , takeoff booster , takeoff rocket ]
an additional dose that makes sure the first dose was effective
[ Syn: booster dose , booster shot , recall dose ]