There are multiple definitions - click on the translation that matches your context.

コレクション

名詞

partial

collection

noun

Definitions of collection

English

a group of objects such as works of art or pieces of writing brought together in one place

He was a violent criminal who nonetheless had a big gun collection.

English

presenting a negotiable instrument, eg a cheque or draft, for payment, or converting accounts receivable into cash

The draft is sent for collection, known as a documentary collection.

English

the act or process of gathering things from different places and bringing them together

Adopting encryption can make the mass collection of personal data more difficult and expensive.