expire Definition

expire
verb, intr expired, expiring

1. To come to an end or cease to be valid.

Thesaurus: end, finish, stop, quit, terminate.
2. To breathe out.
3. To die.

Thesaurus: die, perish, breathe one's last, depart, pass on.

Derivative: expiration

Expiry.
Thesaurus: end, finish, close, closing.

The act or process of breathing out.

Etymology: 15c: from Latin exspirare to breathe out.