Definition of boost in English:


Line breaks: boost
Pronunciation: /buːst


[with object]
  • 1Help or encourage (something) to increase or improve: a range of measures to boost tourism
    More example sentences
    • These will primarily be aimed at the old, young families and savers - but there will also be some measures to boost productivity and encourage entrepreneurship.
    • Political freedom, during the 1950s and 1960s, was about increased production, boosting agriculture and stimulating industry.
    • Instead he preferred state-sponsored measures that would boost trade and thereby encourage employers to employ.
    improve, raise, uplift, increase, augment, magnify, swell, amplify, enhance, encourage, heighten, help, promote, foster, nurture, arouse, stimulate, invigorate, revitalize, inspire, perk up; support, bolster, buttress, shore up
    informal buck up, jack up, give a shot in the arm to
    increase, expand, raise, elevate, escalate, augment, add to, improve, strengthen, amplify, enlarge, inflate, push up, promote, advance, develop, further, foster, stimulate; facilitate, help, assist, aid, support, back, shore up
    informal jack up, hike, hike up, beef up, crank up, bump up, step up
  • 1.1Amplify (an electrical signal): the specially designed circuit boosts signal strength
    More example sentences
    • Therefore, one or more optical regenerators is spliced along the cable to boost the degraded light signals.
    • Still, this loss is tolerable, because the amplifier boosts the signal level enough to get it to the donor site.
    • As existing analogue transmitters are switched off region by region, the strength of the digital signal will be boosted.
  • 2North American Push from below: Andy boosted him up high enough to reach the keys
    More example sentences
    • He then put the left feet and boosted himself from the wall towards Kashiro.
    • He pushed Hannah onto the ground then boosted himself out of the water.
    lift, raise, hoist, push, thrust, shove, heave, elevate; help, aid, assist
    informal hoick, give someone a leg up
    rare upheave
  • 3North American informal Steal (something): he’d had his wallet boosted in a bar
    More example sentences
    • Our tablemate Bob, not on our tour, had his wallet boosted by a group including an amputee.
    • I got extremely paranoid that some deft pickpocket had my number and it was only a matter of time before my wallet was boosted.
    • I have noticed a rise in the arrests of individuals who are boosting wallets from purses in unattended shopping carts at grocery stores.


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early 19th century (originally US, in sense 2 of the verb): of unknown origin.

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