boost
/buːst/ noun, verb
Forms boosts boosting boosted
- noun A push from behind or below, as to one who is endeavoring to climb.
- noun Something that helps, or adds power or effectiveness; assistance. “The controversy gave a boost to the author's sales.”
- noun (physics) A coordinate transformation that changes velocity.
- noun (automotive engineering, uncountable) A positive intake manifold pressure in cars with turbochargers or superchargers.
- verb (transitive) To lift or push from behind (one who is endeavoring to climb); to push up.
- verb (transitive, by extension) To help or encourage (something) to increase or improve; to assist in overcoming obstacles. “This campaign will boost your chances of winning the election.”
- verb (slang, transitive) To steal.
- verb (Canada, transitive) To jump-start a vehicle by using cables to connect the battery in a running vehicle to the battery in a vehicle that won't start.
- verb (transitive, medicine) To give a booster shot to.
- verb (transitive, engineering) To amplify; to signal boost.
Synonyms
encouragement rise hike cost increase hike up promote advance further encourage supercharge
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.
Webster’s 1913
- verb To lift or push from behind (one who is endeavoring to climb); to push up; hence, to assist in overcoming obstacles, or in making advancement. [Colloq. U. S.]
- noun A push from behind, as to one who is endeavoring to climb; help. [Colloq. U. S.]
Etymology [Cf. Boast, v. i.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “boost”, CC BY-SA 4.0. Details