I know all the ins and outs of this job.

There were many drop ins at the event.

The sit-ins were a powerful form of protest during the civil rights movement.

Many shut-ins rely on home delivery services for their groceries.

There have been several cave ins in this area recently.

I've had a few run-ins with my neighbors.

There were several lock ins at the party last night.

The game went into extra-innings.

There are many tie-ins to the movie, including merchandise and spin-off books.

There are many tie ins to the movie, including merchandise and spin-off books.