inside or within a place, object, or area
The cat is in the box.
There is milk in the fridge.
to or at a point inside
Please come in.
He walked in without knocking.
during a particular month, year, season, or part of the day
School starts in September.
We usually ski in winter.
after the passing of a specified amount of time
I'll be back in an hour.
The movie starts in ten minutes.
experiencing or surrounded by a particular situation, state, or condition
He is in trouble with his teacher.
They were in love from the moment they met.
fashionable, popular, or trendy at the moment
Bright colors are really in this season.
Those old jeans are back in now.
a useful connection or influence that gives someone special access or advantage
She has an in with the editor.
I’ve got an in at the theater for free tickets.