intransitive. Of an external agency (as a blow, smoke, etc.) or a wound, etc.: to be a source of sharp pain; to be acutely painful, to sting, to hurt.

trans. and intr. To cause a sharp smarting pain (to): as a sharp stroke, a blister, caustic, etc.

intransitive. To be acutely painful; to smart, throb. Only Scottish and northern.

intransitive. To sting, as or like a nettle; to affect with a tingling pain or stinging sensation.