A wine maven.
An example of a maven is someone who knows all about wine.
Origin of mavenYiddish from LHeb m?vin
Origin of mavenYiddish meyvn from Hebrew mēbîn active participle of hēbîn to understand derived stem of bîn to discern byn
- (chiefly US) A self-styled expert in a given field.
- Pam is a coffee maven; she knows so much about coffee.