The fall line is the point where multiple rivers become waterfalls.

The soldiers bravely stood on the firing line.

The aircraft was parked on the flight line.

The ball landed just outside the foul line.

I merged onto the highway using the acceleration line.

Even in the midst of a difficult situation, there is always a silver lining.

The government is taking a soft line on the issue.

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

The bride and groom stood at the front of the receiving line, greeting each guest as they arrived.

I hired a van line to transport my belongings for a long-distance move.