The fault line runs through the entire region, causing frequent earthquakes.

He was completely out of line with his rude comments.

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

He painted a mural along the lines of a river flowing through a forest.

" That's my line - you can't steal my jokes!"

We need to set a base-line to measure our current performance against.

It is important to toe the line and follow the rules.

We have to draw a line somewhere.

I'm sorry, I have another call on the other line. Can I call you back later?

Our troops managed to infiltrate the enemy line.