Contour lines are used in topographic maps to represent changes in elevation.

The spring lines on the boat were securely tied to the dock.

The soldiers carefully attached the static lines to their parachutes.

The finishing lines of the race were painted on the road.

The finish lines of the race were marked with colorful flags.

The project team made significant gains in their production lines.

The scientist observed the spectral lines in the spectrum.

The datum lines on the blueprint help to establish the reference points for measurements.

The museum showcases various lines of beauty from different art movements.

There are multiple toll lines on the highway.