A wine maven.
The definition of a maven is an expert.
An example of a maven is someone who knows all about wine.
Informal an expert or connoisseur, often, specif., a self-proclaimed one
often sp. ma′vin
Origin of mavenYiddish ; from LHeb m?vin
A person who has special knowledge or experience; an expert.
Origin of mavenYiddish meyvn, from Hebrew m&emacron;bîn, active participle of h&emacron;bîn, to understand, derived stem of bîn, to discern; see byn in Semitic roots.
- (chiefly US) A self-styled expert in a given field.
- Pam is a coffee maven; she knows so much about coffee.