noun

a long upholstered piece of furniture for several people to sit on.

I sat in an armchair and they sat on the couch

settee,sofa,divan,chaise longue,chesterfield,love seat,settle,ottoman,put-you-up,day bed,davenport,studio couch,sectional,canapé,tête-à-tête,squab

verb

express (something) in language of a specified style.

the assurances were couched in general terms

express,phrase,word,frame,put,formulate,style,render,set forth,put across,convey,communicate,say,state,utter,voice