Pain in the head; a headache.

An ache or pain within the head. Also as a mass noun.

The condition or fact of having a headache; aching or pain in the upper part of the head. Also as a count noun: a headache.

Headache.

= soda, n.2

Scottish. Of the head: aching. a sore (Sc. sair) head, a headache.

The action of rage, v. (in various senses); an instance of this.

Head-ache.

Chiefly British colloquial. A headache. Cf. heady, adj. 6b.

A splitting headache.

the state of suffering from or being prone to headache.