What is the meaning of Expert?

Extraordinarily capable or knowledgeable.

Characteristic of an expert.

Proven, experienced, veteran.

A person with extensive knowledge or ability in a given subject.

A player ranking just below master.

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expert (person with extensive knowledge or ability in a given subject)

expert

expert

expert

expert

expert (person with extensive knowledge or ability in a given field)

expert (person with extensive knowledge or ability in a given field)

wizard (program or script used to simplify complex operations)

expert

Source: wiktionary.org