A piece of furniture for seating two or more people, typically upholstered and having a back and arms. She bought a new couch for the living room to accommodate more guests.
A long, upholstered piece of furniture that can be used for lying down as well as sitting. After a long day at work, he likes to relax on the couch and watch TV.
A layer or coating of a specified substance, such as paint or varnish, applied to a surface. Apply a thin couch of varnish to protect the wood.