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

reter

verbo

full

retain

verb

Definitions of retain

English

keep; to keep something; to continue to have something

The court allowed the landlord to retain the deposit paid by the tenant.

English

to have the services of a lawyer or other professional, sometimes by paying them before you need them so that they are ready to act for you immediately when required

Jeff Frederick has retained legal counsel for Saturday's SCC meeting in which his Chairmanship will be put to a vote.