ас

rare #13669nounmasculineanimatecountable

1.
ace, past master, expert
Он настоя́щий ас в своём де́ле.
He is a real ace at what he does.
Often of a pilot; colloquial when used of any skilled specialist.

Examples

Она стала асом вождения за год.
She became an ace driver in just one year.
Этот пилот — ас с большим опытом.
This pilot is an ace with a great deal of experience.
Он настоящий ас в своём деле.
He is a real ace at what he does.