Thesaurus.com
Dictionary.com
Definitions

pump up

VERB
blow up
Synonyms
STRONGEST
fill
WEAK
billow bloat distend enlarge expand inflate puff up swell
Antonyms
WEAK
be calm deflate ignore let go let out shrink shrivel
VERB
energize
Synonyms
STRONGEST
animate electrify empower excite invigorate motivate reinforce stimulate strengthen trigger
STRONG
arm enable enliven fortify goose innervate inspirit prime quicken sustain vitalize
WEAK
actify activize build up jazz up juice up liven up pep up put zip into start up switch on turn on work up
Antonyms
STRONGEST
bore calm deaden depress discourage dishearten dissuade dull weaken
STRONG
halt stop
WEAK
deactivate debilitate sap tire weary
VERB
fill
Synonyms
STRONGEST
block clog close cram crowd furnish lade load overflow pack permeate saturate store stuff supply swell top
STRONG
charge choke congest distend fulfill glut gorge heap impregnate inflate meet overspread pervade plug ram replenish sate satiate satisfy shoal stock stopper stretch
WEAK
blow up brim over bulge out jam-pack pack like sardines puff up ram in take up top off
Antonyms
STRONGEST
open release unblock unstop
STRONG
abstain compress contract deflate deplete deprive diet dissatisfy fail fast miss shrink use up waste
WEAK
drain empty exhaust spend take use void
VERB
inflate
Synonyms
STRONGEST
augment bloat boost enlarge escalate exaggerate expand magnify maximize overestimate pad widen
STRONG
aerate aggrandize amplify balloon cram dilate distend exalt pyramid raise spread stretch surcharge
WEAK
beef up build up flesh out puff up swell up
Antonyms
STRONGEST
abridge decrease diminish lessen lower play down reduce shrink weaken
STRONG
compress contract debase depress
WEAK
deflate let air out
VERB
vitalize
Synonyms
STRONGEST
enliven invigorate juice up stimulate
STRONG
animate arm electrify empower enable excite exhilarate fortify goose innervate inspirit motivate prime quicken reinforce strengthen sustain trigger
WEAK
actify activize build up jazz up liven up pep up put zip into start up switch on turn on work up
Antonyms
STRONGEST
bore depress dull enervate
STRONG
block deaden discourage dissuade halt hurt stop weaken

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

But you should be strategic, not frantic, when trying to pump up your AI bona fides, writes Callum Borchers.

From The Wall Street Journal • Feb. 11, 2026

These rules allow employees to seriously pump up their retirement savings, specifically by converting those after-tax savings to Roth dollars through the three-step megabackdoor Roth strategy.

From MarketWatch • Nov. 24, 2025

On Sunday, Chelsea supporters again booed players who passed the ball backwards and, after Cucurella's goal, Maresca turned to supporters and told them to pump up the volume.

From BBC • Mar. 9, 2025

He wanted to emphasize he was spending lavishly to build a foundation to challenge the Dodgers year in and year out, not to pump up the payroll and attendance and then sell the team.

From Los Angeles Times • Feb. 1, 2025

When I went and stood by her side, she lifted her head, looked at me, and raised a hand, once, twice, as if to pump up words.

From "Crispin: The Cross of Lead" by Avi