1 a a long, low, padded seat set against a room-wall; a backless sofa. b a bed consisting of a base and mattress, usu. with no board at either end.
2 an oriental State legislative body, council-chamber, or court of justice.
3 archaic a a cigar-shop. b a smoking-room attached to such a shop.
Etymology: F divan or It. divano f. Turk. divan f. Arab. diwan f. Pers. divan anthology, register, court, bench
Useful english dictionary. 2012.