Meanings
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1
verb
To increase or improve something.
The company hopes the ads will boost sales.
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2
noun
Something that helps to increase or improve something.
The good news gave a real boost to the team's morale.
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3
verb
To push or lift someone upward from below.
He boosted his little sister over the fence.
Thesaurus
Etymology
Unknown. The verb is first recorded 1815; the noun, 1825. Compare Scots boost (“to move; drive off; shoo away”), bost, boast (“to threaten; scold”), Middle English boosten, bosten (“to threaten”). Possible doublet of boast.