naturalize

verb

1 he emigrated to New York before World War II and was naturalized in 1950:

grant citizenship to, make a citizen, endow with the rights of citizenship, confer citizenship on, give a passport to, enfranchise;

rare endenizen, denizen, citizenize.

2 coriander has been naturalized in southern Britain:

establish, introduce, acclimatize, domesticate;

North American acclimate.

3 he saw myth as the process by which ideology is naturalized:

assimilate, absorb, incorporate, adopt, accept, take in, homogenize;

rare acculturate.