- 1[uncountable] a game for two players, played in a court surrounded by four walls, using rackets and a small rubber ball a squash court to play squash
- 2(pl. squash or squashes) [countable, uncountable] a type of fruit that grows on the ground and is eaten as a vegetable. Winter squash have hard skin and orange flesh. Summer squash have soft yellow or green skin and white flesh. see also butternut squash
- 3[singular] (informal) if something is a squash, there is hardly enough room for everything or everyone to fit into a small space It's a real squash with six of us in the car.