Goose/ɡuːs/ Definition 1 of 5Pro Tip 1/2Plural Form The word for more than one goose is 'geese', which is an irregular plural. There are several geese swimming in the lake. Pro Tip 2/2Common Expressions 'Goose chase' often means a futile search or pursuit. Looking for that old book in the attic was a wild goose chase.