Search expire expire /ikspī″ər/ [L, expirare, to breathe out] , 1. to breathe out. Also called exhale. 2. to die. Tweet Telegram VK Random Words harlequin color colitis napkin ring tumor phosphoric acid (H3PO4) accommodative strabismus -filcon induction of labor bis in die (b.i.d.) plasma thromboplastin antecedent (PTA)