- 1[transitive] assimilate something to fully understand an idea or some information so that you are able to use it yourself The committee will need time to assimilate this report. Some people can only assimilate change gradually.
- 2[intransitive, transitive] to become, or allow someone to become, a part of a country or community rather than remaining in a separate group assimilate (into/to something) New arrivals find it hard to assimilate. assimilate somebody (into/to something) Immigrants have been successfully assimilated into the community.
- 3[transitive, often passive] assimilate something into/to something to make an idea, a person's attitude, etc. fit into something or be acceptable These changes were gradually assimilated into everyday life.
NAmE//əˈsɪməˌleɪt//Verb Forms present simple I / you / we / they assimilate
he / she / it assimilates
past simple assimilated
-ing form assimilating