(countable and uncountable) An unpleasant sensation or bodily suffering resulting from a derangement of functions, disease, injury, or childbirth contractions.

(uncountable) The condition or fact of suffering or anguish especially mental, as opposed to pleasure; torment; distress

(countable, from pain in the neck) An annoying person or thing.

(chiefly in the plural) Labour; effort; great care or trouble taken in doing something.

(transitive) To hurt; to put to bodily uneasiness or anguish; to afflict with uneasy sensations of any degree of intensity; to torment; to torture.

(transitive) To render uneasy in mind; to disquiet; to distress; to grieve.

(intransitive, India) To feel pain; to hurt.