Meaning of the word hallmark in English

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

hallmark

US /ˈhɑːl.mɑːrk/
UK /ˈhɔːl.mɑːk/

Noun

a mark stamped on articles of gold, silver, or platinum in Britain, certifying their standard of purity.

Verb

stamp with a hallmark.

Example:
he was reprimanded for not hallmarking his work