From Longman Dictionary of Contemporary Englishchaise longuechaise longue /ˌʃeɪz ˈlɒŋ $ -ˈlɒːŋ/ noun (plural chaises longues (same pronunciation)) [countable] 1 DHFa long chair with an arm only at one end, on which you can sit and stretch out your legs 2 American EnglishDHF a long chair with a back that can be upright for sitting, or can lie flat for lying down
Examples from the Corpus
chaise longue• There were small couches, a chaise longue, and two overstuffed chairs.• A woman, reclining on a green chaise longue, wears a rose peignoir, its ostrich collar languorously open.• A new chaise longue and reclining chair have been added to the light shapely chairs already in production.• I also had a plastic chaise longue between the door and the table.Origin chaise longue (1800-1900) French “long chair” 