deckchair

UK: /ˈdɛktʃɛə^r/

Collins Concise English Dictionary © HarperCollins Publishers::

deckchair / ˈdɛkˌtʃɛə/ noun

1. a folding chair for use out of doors, consisting of a wooden frame suspending a length of canvas

WordReference Random House Unabridged Dictionary of American English © 2025

deck′ chair′, 

1. Furniture a folding chair, usually with arms and a full-length leg rest, commonly used for lounging on the decks of passenger ships. Also called steamer chair. 

• 1880–85