Pronunciation: (bī'wûrd"),[key] —n. 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.