The fault-lines in the region are constantly shifting.

The field lines indicate the direction of the magnetic field.

The soldiers stood in the firing lines, ready to engage the enemy.

The baseball field is marked with foul lines.

The forward lines scored three goals in the game.

The frost lines on the ground were visible in the morning.

The grounding lines of the glaciers are receding due to climate change.

The soldiers stood in formation along the gun lines.

The poem is composed of several half-lines.

The head lines of the newspaper were bold and attention-grabbing.