to begin and seem likely to continue; (of a story, film, or play) to take place in a particular place or time; fixed in one's habits and unwilling to change (set in one's ways); to fasten sth into a flat surface so that it does not stick out from it
Oxford35% of films
to begin and seem likely to continue
Day two or three, hunger really started to set in.
Editorial25% of films
(of a story, film, or play) to take place in a particular place or time
"which is set in New York."
Editorial5% of films
fixed in one's habits and unwilling to change (set in one's ways)
Oxford5% of films
to fasten sth into a flat surface so that it does not stick out from it
Definitions from the Oxford Advanced Learner's Dictionary, 9th edition