in

nouns

a unit of length equal to one twelfth of a foot

adjectives

holding office
"the in party"
in
is similar to
having succeeded or being marked by a favorable outcome
"a successful architect"; "a successful business venture"
directed or bound inward
"took the in bus"; "the in basket"
in
is similar to
arriving at a place or position
"incoming class"; "incoming mail"
currently fashionable
"the in thing to do"; "large shoulder pads are in"
in
is similar to
being or in accordance with current social fashions
"fashionable clothing"; "the fashionable side of town"; "a fashionable cafe"
domain usage
a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech

adverbs

to or toward the inside of
"come in"; "smash in the door"