Meaning of the word "past master" in English

What does "past master" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

past master

US /pæst ˈmæs.tər/
UK /pæst ˈmæs.tər/
"past master" picture

Noun

1.

a person who is very skilled or experienced in a particular activity or subject

Example:
He's a past master at negotiation, always getting the best deal.
She's a past master at making excuses.
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