Definitionen
1.VerbTo die."The patient expired in hospital."
2.VerbTo lapse and become invalid."My library card will expire next week."
3.VerbTo come to an end; to conclude.
4.VerbTo exhale; to breathe out.
5.VerbTo give forth insensibly or gently, as a fluid or vapour; to emit in minute particles.
6.VerbTo bring to a close; to terminate.
7.VerbTo cause to lapse; to invalidate."The site expires cached pages that are older than 24 hours."