Hallmark
Noun
UK
/ˈhɔːl.mɑːk/
US
/ˈhɑːl.mɑːrk/
Definition
A sign or quality that shows something is real, special, or belongs to someone.
Example
"Honesty is the hallmark of a strong friendship."
"Clear writing is the hallmark of a good author."
"The hallmark on the ring showed it was real gold."
Explanation
Hallmark means a special feature or sign that clearly shows something is true or belongs to a certain person, place, or style. For example, honesty might be a hallmark of a good leader, or bright colors might be a hallmark of an artist’s work. It can also refer to a stamp or symbol that proves something (like gold or silver) is real and high quality.