byword

noun

1. a word or phrase associated with some person or thing; a characteristic expression, typical greeting, or the like.
2. a word or phrase used proverbially; common saying; proverb.
3. an object of general reproach, derision, scorn, etc.: His crimes will make him a byword through the ages.
4. an epithet, often of scorn.

noun

1. a person, place, or thing regarded as a perfect or proverbial example of somethingtheir name is a byword for good service
2. an object of scorn or derision
3. a common saying; proverb