crescent

The figure of the moon as it appears in its first or last quarter, with concave and convex edges terminating in points.

Something shaped like a crescent, especially:

A representation of the symbol used by Islamic caliphates

A crescent spanner.

To form into a crescent, or something resembling a crescent.

To adorn with crescents.

Marked by an increase; waxing, like the Moon.

Shaped like a crescent.