Definition of "dud"
noun:
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A device or machine that is useless because it does not work properly or has failed to work, such as a bomb, or explosive projectile.
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A lottery ticket that does not give a payout.
from Wiktionary, Creative Commons Attribution/Share-Alike License -
Clothes, now always used in plural form duds.
from Wiktionary, Creative Commons Attribution/Share-Alike License
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