To heat something after it has cooled off, especially previously cooked food (also in figurative senses).
To become hot again after having cooled off (also in figurative senses).
An afterburner.
To char, scorch, or burn the surface of (something) with a hot instrument.
To make callous or insensible.
To wither; to dry up.
To mark permanently, as if by burning.
A scar produced by searing
Part of a gun that retards the hammer until the trigger is pulled.
Dry; withered, especially of vegetation.