DictionaryamassGathering a large amount
verb

amass

uh-MASS/əˈmæs/

To collect a large amount of something.

The woman amasses a large collection by repeatedly adding coins to her jars.

A three-stage visual sequence shows the same woman repeatedly adding coins to her collection: a few coins in one jar, several filled jars, then a large accumulation of filled jars and coin stacks.
Etymology

The pieces suggest bringing things together into a heap. The early meaning “heap up for oneself” supplies the image behind accumulating a large quantity over time.

In context

ThinkTech Hawaii12:49
… it's how can i best amass a whole lot of information simplify it as much as possible …
KHON2 Anchor Gina Mangieri (Beyond The Lines)

More examples

  • He amassed considerable savings over thirty years.
  • They hope to amass enough evidence to reconstruct the event.
  • The team is amassing data from hundreds of observation sites.

Forms

amass · amasses · amassed · amassing

Similar words

collect
Does not necessarily imply a large quantity.
accumulate
Can describe gradual buildup without a deliberate collector.