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Definitions

fill up

[fil-uhp] / ˈfɪlˌʌp /

VERB

brim

Synonyms

STRONGEST

fill overflow swell teem

STRONG

spill

WEAK

hold no more run over well over

VERB

fuel

Synonyms

STRONGEST

feed incite inflame sustain

STRONG

charge fan fire gas nourish service supply

WEAK

fill 'er up gas up stoke up tank up

Antonyms

WEAK

de-energize deplete discourage unfuel

VERB

heap

Synonyms

STRONGEST

concentrate dump stack

STRONG

accumulate add arrange augment bank bunch deposit fill gather group hoard increase load lump mass mound pack stockpile store swell

Antonyms

STRONG

decrease deplete diminish disperse distribute divide lessen lose mix up scatter separate spend spread squander subtract use waste

VERB

recruit

Synonyms

STRONGEST

call up draft engage enlist enroll improve mobilize raise round up select

STRONG

augment better deliver gain impress induct levy muster obtain procure proselytize reanimate recoup recover recuperate refresh regain reinforce renew repair replenish repossess restore retrieve revive strengthen supply

WEAK

build up call to arms find human resources sign on sign up store up take in take on win over

Antonyms

STRONGEST

avoid cancel decline decrease diminish dismiss dodge ignore neglect refuse reject shun stop

STRONG

break damage destroy deteriorate forfeit hurt kill lose miss ruin waste weaken worsen

VERB

supplement

Synonyms

STRONGEST

augment build up buttress complement enhance enrich fill out fortify improve reinforce strengthen subsidize

STRONG

complete extend increase pad supply top

WEAK

add fuel to fire beef up heat up jazz up punch up step up

Antonyms

STRONGEST

decrease discourage dissuade hurt injure let down reduce take away weaken worsen

STRONG

lose lower

WEAK

subtract

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.

Whitaker, who is based in Elk Run Heights, Iowa, said he pays around $1,200 to fill up his truck, up from around $750 before fuel prices started climbing in March.

From The Wall Street Journal • Jun. 2, 2026

They fill up with Iranian and Russian oil from passing tankers and redistribute it to other ships.

From The Wall Street Journal • May 28, 2026

Sandford said that his hobbies of wildlife photography and guitar could only fill up so many hours in the day.

From BBC • May 25, 2026

The interior architect had to fill up the gas-powered 2026 Q5 before returning it, paying $108 to do so.

From MarketWatch • May 6, 2026

“It’s too bad, for there is no time to make other things, and I don’t want to fill up with odds and ends. The table was just complete then. Now it’s spoiled.”

From "Little Women" by Louisa May Alcott

fill up

Example Sentences

Related Words