A couch is a piece of furniture where people can sit or lie down.
You'll often see a couch in the living room of a house, where family and friends like to relax together. It's usually big and comfortable, with cushions on it that you can sink into. Sometimes it has arms on either side, and sometimes it's just one long seat without any arms at all. People will curl up on the couch with a book or their phone, watch TV, or even take a nap. It's like a cozy spot where everyone feels welcome to hang out.
How common is "couch"?
Word couch is considered uncommon in modern English. It appears most frequently in fiction texts and less often in other writings.
Definitions
noun
(Canada, US, Australia, Ireland) An item of furniture, often upholstered, for the comfortable seating of more than one person; a sofa.
A bed, a resting-place.
The den of an otter.
(art, painting and gilding) A preliminary layer, as of colour or size.
(brewing) A mass of steeped barley spread upon a floor to germinate, in malting; or the floor occupied by the barley.
Example: a couch of malt
(metonymic, usually as "the couch") Psychotherapy.
Example: He spent years on the couch going over his traumatic childhood.
(figurative, politics, usually as "the couch") Voters who opt out of voting, usually by staying home on their couch.
Example: If Kamala Harris replaces Joe Biden in the 2024 election, analysts warn that she will lose to the couch.