psychological term...

[Renoah]

word... beginning with F i think.. to mean feeling at ease or at home in an alien place. like how some people feel like they can fit in, in new cities like new york, because theres so much going on...

? help.

[ladyalex]

integrate ?

[Quizmonster]

Comfortable, perhaps? It contains an f!

[DJ-999]

One word I'm thinking of is "Fitting" (http://dictionary.cambridge.org/define.asp?key =29230&dict=CALD) or "Fit In." (http://dictionary.cambridge.org/define.asp?key=97423&dict=CALD). Or maybe it's "Facilitate."

I'm not sure if they're the words you're looking for.

[Renoah]

um no.... my friend is doing a masters in some sort of psychological course, and he mentioned it to be the other day. its a word id previously never heard of.. but im sure it began with f... haha. dont worry... its just bugging me, im sure he'll remember, ill ask him later. thanks tho. x

[spacechimp]

Familiarized? Pretty mainstream word though...

[jno]

all I can think of is assimilate, which answers your question except for one vital point...