\ ˈbüst \
boosted; boosting; boosts

Definition of boost

 (Entry 1 of 2)

transitive verb

1 : to push or shove up from below boosted him up over the fence
2 : increase, raise plans to boost production an extra holiday to boost morale
3 : to promote the cause or interests of : plug a campaign to boost the new fashions
4 : to raise the voltage of or across (an electric circuit)
5 slang : steal, shoplift



Definition of boost (Entry 2 of 2)

1 : a push upward gave her a boost into the saddle
2 : an act that brings help or encouragement : assist an innovation that has been a boost to the entire industry
3 : an increase in amount a boost in prices

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Synonyms & Antonyms for boost

Synonyms: Verb

heave, heft, hoist, jack (up), upheave

Synonyms: Noun

abetment, aid, assist, assistance, backing, hand, help, helping hand, leg up, lift, support

Antonyms: Noun


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Choose the Right Synonym for boost


lift, raise, rear, elevate, hoist, heave, boost mean to move from a lower to a higher place or position. lift usually implies exerting effort to overcome resistance of weight. lift the chair while I vacuum raise carries a stronger implication of bringing up to the vertical or to a high position. scouts raising a flagpole rear may add an element of suddenness to raise. suddenly reared itself up on its hind legs elevate may replace lift or raise especially when exalting or enhancing is implied. elevated the taste of the public hoist implies lifting something heavy especially by mechanical means. hoisted the cargo on board heave implies lifting and throwing with great effort or strain. heaved the heavy crate inside boost suggests assisting to climb or advance by a push. boosted his brother over the fence

Examples of boost in a Sentence


She boosted the boy onto his father's shoulders. boosted the child into her car seat


a boost in wheat production Exercise can sometimes provide a boost of energy. After layoffs at the company, employees needed a boost in morale. One company's innovation has proven to be a boost to the entire industry. Give the boy a boost onto the stage, will you?
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Recent Examples on the Web: Verb

Inflation was cooling, and Fed Chairman Alan Greenspan argued that technological advances were boosting productivity, allowing economic growth to accelerate without price pressures. Justin Lahart, WSJ, "Warning to Investors: Powell Is No Greenspan," 15 Jan. 2019 Some evidence suggests that skilled immigrants boost wages. Hope Yen, The Seattle Times, "AP fact check: Trump isn’t holed up nonstop at White House," 14 Jan. 2019 First, a moisturizer that contains both hyaluronic acid and SPF, which helps her skin stay hydrated and boosted. Kate Branch, Vogue, "Watch Eiza González’s 8-Minute Wake-Up-and-Go Beauty Routine," 24 Dec. 2018 The Trump administration is trying to boost the capabilities of Afghan security forces and increase military pressure on the Taliban in the hope of forcing them to negotiate a peace. Lolita C. Baldor,, "Army ponders changes after insider attack that killed soldier in Afghanistan," 14 July 2018 Tan boosts China’s clear emergence as a global leader with the looming presence of the World Expo – proof that the world now comes to China with both money and manpower. Terry Hong, The Christian Science Monitor, "'What We Were Promised' depicts post-Mao China in a deft debut novel set in Shanghai," 13 July 2018 The startup is betting that its no-fee policy and a commitment to their donors will boost use of the platform: The money must be used to purchase a home, and HomeFundIt will hold onto the fund for a maximum of one year to protect the donors. Sara Rodrigues, House Beautiful, "Should Your Friends Crowdfund The Down Payment On Your Home? This Start-Up Thinks So," 18 Dec. 2018 Intel Singhal said the three approaches should boost the performance of Sunny Cove CPUs. Gordon Mah Ung, PCWorld, "Surprise! Intel reveals 10nm Sunny Cove CPU cores that go deeper, wider, and faster," 12 Dec. 2018 The yeast, understandably, is loving this—adding sugar gives it more to feed on and will boost the alcohol content of the final product. Casey Johnston, Ars Technica, "Store-bought is not enough: My first hard cider homebrew," 22 Nov. 2018

Recent Examples on the Web: Noun

Guarente explains that the boost merely brings people’s levels to what they would previously have reached naturally. Nicole Saporita, Good Housekeeping, "Can Elysium Health's Basis Pill Change Your Life?," 26 Dec. 2018 Talent will out, as far as Bergdorf Goodman in Quinn’s case, but the global publicity boost was invaluable, too. Sarah Mower, Vogue, "Meghan Markle, Kate Moss, Richard Quinn, and More From Inside the 2018 Fashion Awards," 11 Dec. 2018 Republicans agreed to a massive budget deal this year to give the military the biggest funding boost in history. Tara Golshan, Vox, "Paul Ryan’s regrets, explained for Paul Ryan.," 29 Nov. 2018 Add in the high cost of living in many coastal cities, and the recent boosts in pay are seen by many as a work-in-progress. Laurent Belsie, The Christian Science Monitor, "As economy hums, fewer workers make minimum wage," 6 July 2018 Sufficiently high levels of lithium result in the transfer of an electron to molybdenum (which in turn alters the structure of the material) and a boost of its conductance. John Timmer, Ars Technica, "Researchers make RAM from a phase change we don’t entirely understand," 18 Dec. 2018 The median salary for consultants who returned to professional services firms like McKinsey Co. or Deloitte Touche LLP after getting an M.B.A. was $162,000 a year, the highest pay in any sector, and a boost of $82,000 annually. Kelsey Gee, WSJ, "Looking to Double Your Salary? Try an M.B.A.," 7 Dec. 2018 Leading killer-whale scientists and researchers are calling for removal of four dams on the Lower Snake River and a boost of water over the dams to save southern resident killer whales from extinction. Lynda V. Mapes, The Seattle Times, "Orca survival may be impossible without Lower Snake River dam removal, scientists say," 15 Oct. 2018 Mostly, it's used not to give the Ram a boost of oomph on the highway, but to flatten out gaps in engines' torque bands at low speeds. Matthew Jancer, Popular Mechanics, "Ram 1500 eTorque: Why the Electrified Pickup Truck Is Even Better," 19 Sep. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'boost.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of boost


1801, in the meaning defined at transitive sense 1


1801, in the meaning defined at sense 1

History and Etymology for boost


of obscure origin


noun derivative of boost entry 1

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Statistics for boost

Last Updated

20 Jan 2019

Look-up Popularity

Time Traveler for boost

The first known use of boost was in 1801

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More Definitions for boost



English Language Learners Definition of boost

 (Entry 1 of 2)

: to increase the force, power, or amount of (something)

: to push or shove (something or someone) up from below



English Language Learners Definition of boost (Entry 2 of 2)

: an increase in amount

: help or encouragement

: a push upward


\ ˈbüst \
boosted; boosting

Kids Definition of boost

 (Entry 1 of 2)

1 : to raise or push up from below He boosted me through the window.
2 : to make bigger or greater boost production

Other Words from boost

booster noun



Kids Definition of boost (Entry 2 of 2)

: a push up : an act of boosting Give me a boost over the fence.

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More from Merriam-Webster on boost

Rhyming Dictionary: Words that rhyme with boost

Thesaurus: All synonyms and antonyms for boost

Spanish Central: Translation of boost

Nglish: Translation of boost for Spanish Speakers

Britannica English: Translation of boost for Arabic Speakers

Comments on boost

What made you want to look up boost? Please tell us where you read or heard it (including the quote, if possible).


to gather or build up little by little

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