accumulation

The word “accumulation” means the gradual gathering of something into a larger amount; also the resulting mass. In plain terms, a buildup of something over time, or the process of that buildup.

“Accumulation” is pronounced uh-kyoom-yuh-LAY-shuhn (/əˌkjuːm.jəˈleɪ.ʃən/ in IPA).

Here is “accumulation” used in a sentence: “Years of accumulation left the attic full of old boxes.”

Words with a similar meaning to “accumulation” include retained earnings.

The opposite of “accumulation” — its antonyms — is decumulation.

“Accumulation” is a noun.

“Accumulation” is an uncommon word in modern English.

Accumulation refers generally to the gradual gathering of something into a larger amount, whether physical items, dust, or money. Accrual is a more specific financial and accounting term describing amounts, especially interest or expenses, building up over time according to set rules, making it a narrower concept than accumulation.

Yes, accumulation applies equally to physical buildup, such as an accumulation of snow or dust, and to abstract or financial buildup, such as an accumulation of wealth or knowledge. The word describes both the process of gathering and the resulting mass.

In a financial context, accumulation can refer specifically to retained earnings, meaning profits a company keeps and reinvests rather than distributing to shareholders. This is a specialized use of the more general meaning of gradual gathering into a larger amount.