v.intr. 1 have a place as part of objective reality. 2 a have being under specified conditions. b (foll. by as) exist in the form of. 3 (of circumstances etc.) occur; be found. 4 live with no pleasure under adverse conditions (felt he was merely existing). 5 continue in being; maintain life (can hardly exist on this salary). 6 be alive, live.
[ prob. back-form. f. EXISTENCE; cf. LL existere ]