The word “curl” can function as both a verb and a noun.
As a verb, “curl” means to form into a spiral or curved shape, to twist or coil something, or to cause something to bend around itself. For example, you might curl your hair with a curling iron, or leaves may curl up in the heat.
As a noun, a “curl” refers to a strand of hair or other material that is twisted or coiled in a spiral shape. It can also denote a small, spiral shape or a loop, such as a curl of smoke.
In a broader context, “curl” can also refer to a specific shape or movement in various fields, like curling in sports, where players slide stones on a sheet of ice towards a target area.