Definition of dude
(Entry 1 of 2)
1
: a man extremely fastidious in dress and manner : dandy
2
: a city dweller unfamiliar with life on the range (see range entry 1 sense 3b)
especially
: an Easterner in the West
dude
verb
duded; duding
Definition of dude (Entry 2 of 2)
: dress up
—usually used with up got duded up for the dance
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Merriam-Webster unabridged
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Time Traveler for dude
The first known use of dude was in 1877
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