dude meaning and definition

DUDE noun

Definition of dude (noun)

1. an informal form of address for a man
   • "Say, fellow, what are you doing?"; "Hey buster, what's up?"
   • synonyms: buster, fellow
2. a man who is much concerned with his dress and appearance
   • synonyms: beau, clotheshorse, dandy, fashion plate, fop, gallant, sheik, swell