1 [noncount] formal : the state of being famous or celebrated : FAME

The actress lived a life of celebrity.

2 [count] : a person who is famous

There were many celebrities at the party.

She’s become something of a local celebrity.  [=someone who everyone in the area knows or recognizes]

— often used before another noun

celebrity chef  [=a chef who is famous]

celebrity interviews  [=interviews with famous people]