Definition of booster

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  • booster is a valid Scrabble US word with a point value of 9
  • booster is a valid Scrabble UK word with a point value of 9
  • booster is a valid Words with friends word with a point value of 10

Definition of booster

  • an additional dose that makes sure the first dose was effective (noun)

    Synonyms

    1. booster dose
    2. booster shot
    3. recall dose
  • the first stage of a multistage rocket (noun)

    Synonyms

    1. booster rocket
    2. booster unit
    3. takeoff booster
    4. takeoff rocket
  • a thief who steals goods that are in a store (noun)

    Synonyms

    1. lifter
    2. shoplifter
  • a person who backs a politician or a team etc. (noun)

    Synonyms

    1. admirer
    2. champion
    3. friend
    4. protagonist
    5. supporter
  • someone who is an active supporter and advocate (noun)

    Synonyms

    1. plugger
    2. promoter
  • an amplifier for restoring the strength of a transmitted signal (noun)

    Synonyms

    1. booster amplifier
    2. booster station
    3. relay link
    4. relay station
    5. relay transmitter

See definition of booster in Merriam Webster