assimilate in WordNet English dictionary

1. take up mentally
   "he absorbed the knowledge or beliefs of his tribe"
   absorb  assimilate  ingest  take in 
   
2. become similar to one's environment
   "Immigrants often want to assimilate quickly"
   assimilate 
   
3. make similar
   "This country assimilates immigrants very quickly"
   assimilate 
   
4. become similar in sound
   "The nasal assimilates to the following consonant"
   assimilate 
   
5. take (gas, light or heat) into a solution
   assimilate  imbibe