The soldiers formed a battle line and prepared for the attack.

The aircraft was parked on the flight line.

The comedian delivered a hilarious punch line that had the audience in stitches.

I'm not sure what will happen down the line.

I need to get in line for the concert.

I go down the line for my favorite sports team.

Somewhere down the line, we lost touch with each other.

The Mason Dixon line separates the northern and southern states in the United States.

He was the first to cross the finish line.

The International Date Line marks the boundary where each calendar day begins.