the child of your aunt or uncle
My cousin Lily is coming over for dinner tonight.
Every summer, I go camping with my older cousin Ben in the mountains.
✦ Middle English cosin, from Old French cousin, from Latin consobrinus meaning “mother’s sister’s child.”
something or someone that is related or similar to another thing or group, though not exactly the same
The violin is a close cousin of the viola.
Canada is often called America’s northern cousin.
