maven

Whether it's in fashion, or food, or forensic science, someone who really knows his stuff about a topic is a maven, or a person particularly skilled in the field.

The word maven comes from the Yiddish meyvn, meaning "one who understands." But to be a maven you have to more than just understand a topic, you have to know its ins and outs. Often mavens are the people that you turn to as experts in a field. You don't become a maven overnight. That kind of expertise comes with an accumulation of knowledge over the years.

Definitions of maven
1

n someone who is dazzlingly skilled in any field

Synonyms:
ace, adept, champion, genius, hotshot, mavin, sensation, star, superstar, virtuoso, whiz, whizz, wiz, wizard
Types:
track star
a star runner
Type of:
expert
a person with special knowledge or ability who performs skillfully

Sign up, it's free!

Whether you're a student, an educator, or a life-long learner, Vocabulary.com can put you on the path to systematic vocabulary improvement.