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The definition of boost

11 Definitions of: boost

    1. noun, encouragement, improvement, or help
    2. noun, an upward thrust or push
    3. noun, an increase or rise
    4. noun, a publicity campaign; promotion
    5. noun, the amount by which the induction pressure of a supercharged internal-combustion engine exceeds that of the ambient pressure
    6. verb, to encourage, assist, or improve
    7. verb, to lift by giving a push from below or behind
    8. verb, to increase or raise
    9. verb, to cause to rise; increase
    10. verb, to advertise on a big scale
    11. verb, to increase the induction pressure of (an internal-combustion engine) above that of the ambient pressure; supercharge
    12. Show me some examples of this word: boost
    13. Show me the etymology of the word: boost
Synonyms: rise, increase, advance, jump, addition, improvement, expansion, upsurge, upturn, increment And more...
Antonyms: fall, decrease
 

From Collins

©HarperCollins 2008. Collins English Dictionary definition of boost