- 1saturate something to make something completely wet synonym soak The continuous rain had saturated the soil.
- 2[often passive] saturate something/somebody (with/in something) to fill something or someone completely with something so that it is impossible or useless to add any more The company had saturated the market for cell phones (= so that no new buyers could be found).
NAmE//ˈsætʃəˌreɪt//Verb Forms present simple I / you / we / they saturate
he / she / it saturates
past simple saturated
-ing form saturating