byword

Universal Words noun [usuallysing.] 1 a ~ for sth a person or thing that is a well-known or typical example of a particular quality: The name Chanel became a byword for elegance. 2 (especially AmE) a word or phrase that is well known or often used: Andy Warhol's provocative slogan, 'Everyone will be famous for fifteen minutes', became a sixties byword.