expert in English: A person who knows a great deal about one subject after long study or practice. (noun)

Translation

A person who knows a great deal about one subject after long study or practice.

Word origin

From Latin expertus, meaning tried and tested by experience.

Gender

Pluralexperts

.

"An expert" is someone you can trust on that subject.

.

"An expert on" something names the subject.

.

Here the expert helps with computers.

know

To have information about something, or to be familiar with a person.

skill

The ability to do something well because you have learned it.

professor

A teacher of the highest rank at a university.

study

To spend time learning about something by reading or going to classes.

teach

To help someone learn how to do something or to know new facts.

pro

A short word for a professional, someone who does something with great skill; also a good point about something.

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