sofa [sofas]◼◼◼(upholstered seat) noun [UK: ˈsəʊ.fə] [US: ˈsoʊ.fə]Come sit on the sofa. = Viens t'asseoir sur le sofa.
couch [couches]◼◼◻(furniture for seating of more than one person) noun [UK: kaʊtʃ] [US: ˈkaʊtʃ]Today, I'll sleep on the couch. = Ce soir, je dormirai sur le sofa.
[sur un sofa or sur un canapé] s'allonger verbe
couch [couched, couching, couches](lie down (on a couch)) verb [UK: kaʊtʃ] [US: ˈkaʊtʃ]