Meaning of the word familiarity in English

What does familiarity mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

familiarity

US /fəˌmɪl.iˈer.ə.t̬i/
UK /fəˌmɪl.iˈær.ə.ti/

Noun

a good knowledge of something, or the fact that you know it so well:

Example:
Ellen's familiarity with pop music is astonishing.