This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. A bomb, shell, or explosive round that fails to detonate.

n. Informal One that is disappointingly ineffective or unsuccessful.

n. Informal Clothing.

n. Informal Personal belongings.

n. 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.

n. A lottery ticket that does not give a payout.

n. Clothes, now always used in plural form duds.

n. A coarse cloak or mantle.

n. A rag.

n. plural [Formerly also spelled dudes, as in Harman's “Caveat” (1567), where the word is erroneously set down as “pedlar's French”—that is, thieves' cant.] Clothes; especially, poor or ragged clothing; tatters: used in contempt.

adj. failing to detonate; especially not charged with an active explosive

n. someone who is unsuccessful

n. an event that fails badly or is totally ineffectual

n. an explosion that fails to occur

"The latest dud from the Maple Leafs came Tuesday night with a 6-3 home loss to the Thrashers."

unloaded   

loser    failure    nonstarter    unsuccessful person    flop    fizzle    bust    equipment failure    breakdown   

Blood    Bud    Flood    Judd    Rudd    blood    bud    crud    flood    hud   

antitank    unexploded