Pain
Part of speech: verb
Definition: To hurt; to put to bodily uneasiness or anguish; to afflict with uneasy sensations of any degree of intensity; to torment; to torture. To render uneasy in mind; to disquiet; to distress; to grieve. To inflict suffering upon as a penalty; to punish.
Part of speech: noun
Definition: An ache or bodily suffering, or an instance of this; an unpleasant sensation, resulting from a derangement of functions, disease, or injury by violence; hurt. The condition or fact of suffering or anguish especially mental, as opposed to pleasure; torment; distress; sadness; grief; solicitude; disquietude. An annoying person or thing. Suffering seen as a punishment or penalty.
Example sentence: Pain is temporary. It may last a minute, or an hour, or a day, or a year, but eventually it will subside and something else will take its place. If I quit, however, it lasts forever.
Pains
Part of speech: noun
Definition: An ache or bodily suffering, or an instance of this; an unpleasant sensation, resulting from a derangement of functions, disease, or injury by violence; hurt.(used in plural) Trouble taken doing something; attention to detail; careful effort.
Part of speech: verb
Definition: To hurt; to put to bodily uneasiness or anguish; to afflict with uneasy sensations of any degree of intensity; to torment; to torture.