Get in line

Meaning

To conform to established rules or expectations, or to stop acting out of order. It is a demand for obedience or alignment with the group.

Authoritative, stern

Used in a sentence

• If the employees do not get in line with the new policy, they will be out of a job.
• You need to get in line with the family plans if you want to go on the trip.
• It took some time, but he finally got in line with the rest of the team.