To make oneself comfortable to a new thing.
To make suitable; to make to correspond; to fit or suit
To fit by alteration; to modify or remodel for a different purpose; to adjust
To make by altering or fitting something else; to produce by change of form or character
Adapted; fit; suited; suitable.
To make natural
To make (a word) a natural part of the language, using the native homologue of each phoneme (and often for each morpheme) of the imported word (e.g., native inflections).
To study nature.
To limit explanations of a phenomenon to naturalistic ones and exclude supernatural ones.
To grant citizenship to someone not born a citizen.
To acclimatize an animal or plant.