Collective nouns are words used to describe a group of animals, and cats are no exception. The main collective noun for cats is a clowder. Other collective nouns for cats include a glaring, a cluster, a clutter, a pounce, a kindle, a destruction, a comfort, and a dout.
Kittens, the young of cats, have their own collective nouns as well. A litter of kittens is the most common collective noun, but other terms such as a glorying, a wrack, and a glare are also used.