Entry 2 senses Webster, 1913 daybed · IPA /ˈdeɪˌbɛd/ 01 n. an armless couch; a seat by day and a bed by night. 1. an armless couch; a seat by day and a bed by night. 2. a long chair; for reclining. Syn. divan bed. — Syn. -- chaise longue, chaise.