In many Southeast Asian languages, a contour tone can change the meaning of a single syllable.

In complex analysis, contour integrals are essential tools for evaluating functions by encircling singularities.

The hikers studied the contour maps before deciding which ridge to follow.

The hiker needed to understand the contour intervals on the map to estimate the steepness of the trail.

Linguists analyze contour tones to understand how pitch changes within a syllable convey meaning.

The ancient map's oblique contour puzzled cartographers who expected straighter coastlines.