Definitions

stack up

Part of Speech:

All (9) Verb (5) Noun (4)

Jump To:

accumulate v.
gather v.
rise v.
test v.
total v.
accident n.
crash n.
holding pattern n.
mishap n.

VERB

accumulate

Synonyms

STRONGEST

accrue acquire add to assemble collect compile concentrate expand gain grow hoard increase pile up rack up swell

STRONG

agglomerate aggregate amalgamate cache collocate cumulate gather heap incorporate lump mass pile procure profit stockpile store unite

WEAK

bring together clean up draw together heap together load up make a bundle make a killing roll up round up scare up store up

Antonyms

STRONGEST

contract decrease diminish disperse divide forfeit lessen lose scatter separate shrink spend waste

WEAK

dissipate dwindle squander

VERB

gather

Synonyms

STRONGEST

assemble choose cluster collect congregate convene converge crowd draw flock huddle meet pick round up show up

STRONG

accumulate aggregate amass associate capture concentrate corral cull forgather garner group heap herd hoard marshal mass muster pluck poke punch rally reunite stockpile swarm throng unite

WEAK

bunch up close with draw in gang up get-together hang around hang out make the scene pile up pour in scare up scrape together

Antonyms

STRONGEST

cancel disperse dissemble divide leave miss reject scatter separate spread

STRONG

dissipate lose spend squander throw away waste

WEAK

allot deal distribute grow misunderstand plant

VERB

rise

Synonyms

STRONGEST

accelerate advance ascend build climb double expand go up improve lift move up multiply pick up raise soar swell

STRONG

aggravate arise augment billow bulge deepen distend enhance enlarge heighten inflate intensify levitate magnify mount redouble rouse spread upsurge wax

WEAK

add to go through the roof intensate perk up pile up speed up take off

Antonyms

STRONGEST

contract decelerate decline decrease demolish depress descend destroy diminish divide drop go down lessen lower raze reduce retreat shrink stop weaken worsen

STRONG

calm cave in compress deflate fall soften soothe

WEAK

comply cooperate give in go along recede regress slump

VERB

test

Synonyms

STRONGEST

analyze assess check confirm demonstrate investigate prove question try verify

STRONG

assay experiment inquire substantiate validate

WEAK

experimentalize give a tryout look into make a trial run match up prove out put to the test run idea by someone run it up a flagpole see how it flies see how wind blows send up a balloon shake down try on try on for size try out

Antonyms

STRONGEST

discredit disprove invalidate

VERB

total

Synonyms

STRONGEST

add amount to come to comprise consist of equal pile up reach yield

STRONG

aggregate calculate cast come figure foot number reckon summate totalize tote

WEAK

mount up to result in ring up run into run to sum up

Antonyms

STRONGEST

disproportion fail imbalance

STRONG

estimate guess

WEAK

subtract take away

NOUN

accident

Synonyms

STRONGEST

calamity casualty disaster hazard mishap pileup setback

STRONG

blow collision crack-up fender-bender fluke misadventure misfortune smash total

WEAK

rear-ender smash-up stack-up

Antonyms

STRONGEST

blessing boon good fortune good luck

WEAK

calculation decision intent intention

NOUN

crash

Synonyms

STRONGEST

accident collapse impact pileup wreck

STRONG

bump crack-up crash-land crunch jar jolt percussion ram shock sideswipe smash splashdown thud thump total washout

WEAK

fender bender fender tag rear-ender smash-up

Antonyms

WEAK

blastoff takeoff

NOUN

holding pattern

Synonyms

WEAK

limbo stack-up waiting path

NOUN

mishap

Synonyms

STRONGEST

blunder calamity disaster hazard misfortune mistake pileup setback

STRONG

blow collision crack-up fender-bender fluke misadventure smash total

WEAK

ill fortune rear-ender smash-up stack-up wrack-up

Antonyms

STRONGEST

blessing boon good fortune good luck success

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.

See Examples For:

stack up

Those savings could stack up over the year, he added.

From MarketWatch ● Aug. 14, 2026

Part of the reason more students are graduating early is because it’s easier than in previous generations to stack up college credits before they even step on campus.

From MarketWatch ● Aug. 4, 2026

Once dry, the highly flammable cylinders are sent to the front line, where gun crews stack up to six of them into artillery systems, such as howitzers, depending on the distance they want to fire.

From The Wall Street Journal ● Jul. 20, 2026

Since then the complaints, and violations, have continued to stack up, just as a summer heat wave settled over the region.

From Los Angeles Times ● Jul. 17, 2026

When he saw me, he lowered the tin so I could step onto it, and I rode the stack up and onto the trailer.

From "Educated" by Tara Westover

stack up

Example Sentences

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