# amass

/əˈmæs/ (US) · /ɐmˈæs/ (UK) · CEFR C1 · Verb

Source: https://englishreference.com/word/amass
Updated: 2026-05-26

## Definition

to collect a large amount of something over a long time. You use this when talking about gathering things like money, power, or information.

For teachers: to accumulate a large quantity of something, typically over an extended period. Often implies a systematic or deliberate process of gathering.

## Examples

- He worked hard to amass a large collection of rare books.
- The tech company spent years trying to amass enough data to improve its artificial intelligence algorithms.
- While some families amass wealth through inheritance, others build their fortunes through decades of disciplined investment and strategic business decisions.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.