a word or phrase associated with some person or thing; a characteristic expression, typical greeting, or the like.

a word or phrase used proverbially; common saying; proverb.

an object of general reproach, derision, scorn, etc.

His crimes will make him a byword through the ages.

an epithet, often of scorn.

noun

adage , aphorism , apophthegm , axiom , catchphrase , catchword , dictum , epithet , gnome , gnomic saying , handle , maxim , motto , nickname , precept , proverb , saw , shibboleth , slogan , standing joke , saying , byname , phrase , rule