accumulate

verb

ac·​cu·​mu·​late ə-ˈkyü-m(y)ə-ˌlāt 

accumulated; accumulating

transitive verb

: to gather or pile up especially little by little : amass

accumulate a fortune

intransitive verb

: to increase gradually in quantity or number

snow accumulating to a depth of several feet

Synonyms

• accelerate
• appreciate
• balloon
• boom
• build up
• burgeon
• bourgeon
• climb
• enlarge
• escalate
• expand
• gain
• increase
• mount
• multiply
• mushroom
• proliferate
• rise
• roll up
• snowball
• spread
• swell
• wax

Examples of accumulate in a Sentence

Evidence of his guilt is accumulating.

the number of complaints about that mail order firm is really accumulating

Recent Examples on the Web

For example, an American house accumulates an average of 300,000 objects, with more money spent each year on shoes, jewelry and clothes than on higher education. —Ana Morales, Vogue, 16 Apr. 2025

The rookies this season accumulated 0.054 win shares per 48 minutes—the ninth lowest of the past 40 seasons, but still significantly above recent seasons such as 2014, 2015 and 2017, as well as the infamously unproductive 2001 cohort. —Lev Akabas, Sportico.com, 16 Apr. 2025

The defender never accumulated more than five sacks in a season at Georgia and often struggled to get around quality offensive tackles. —Arick Wierson, MSNBC Newsweek, 16 Apr. 2025

Let decor accumulate organically, collecting meaningful pieces over time. —Sophie Flaxman, Better Homes & Gardens, 15 Apr. 2025

Word History

Etymology

borrowed from Latin accumulātus, past participle of accumulāre "to heap up, add to, increase," from ad- ad- + cumulāre "to gather into a heap" — more at cumulate

Note: In part a Latinization of Middle French accumuler.

First Known Use

15th century, in the meaning defined at transitive sense

Rhymes for accumulate

• abbreviate
• accelerate
• accommodate
• acuminate
• adjudicate
• adulterate
• affiliate
• agglomerate
• agglutinate
• alleviate
• amalgamate
• ameliorate

Kids Definition

accumulate

verb

ac·​cu·​mu·​late ə-ˈkyü-myə-ˌlāt 

accumulated; accumulating

1

: to gather or pile up especially little by little : amass

accumulate a fortune

2

: to increase in quantity, number, or amount

rubbish accumulates quickly

Legal Definition

accumulate

verb

ac·​cu·​mu·​late

accumulated; accumulating

transitive verb

: to gather especially little by little

specifically : to add (income from a fund) back into the principal

intransitive verb

: to increase gradually in amount or number