dud
dud — adjective
- dudpositive
- duddercomparative
- duddestsuperlative
1. describes something that is broken, useless, or has no real value — for example,
describes something that is broken, useless, or has no real value — for example, a battery that cannot power a device or a ticket that is no longer accepted.
The repair shop refused to help because Megan had bought a dud battery online.
attributive use: dud battery
Roya tried to pay with a dud credit card that the machine would not read.
attributive use: dud credit card
After three dud interviews, Devika finally got a real job offer.
The farmer lost a whole season after planting dud seeds that never grew.
文法句型
dud + noun
用法筆記
Used mainly in informal contexts. Most common before nouns like battery, cheque, ticket, or investment.
常見錯誤
dud — noun
- dudsingular
- dudsplural
1. a thing or person that fails to meet expectations or perform properly — such as
a thing or person that fails to meet expectations or perform properly — such as a disappointing movie, a faulty product, or someone who cannot do their job well.
Critics called the new film a dud, and very few people went to see it.
pattern: [thing] + is + a dud
Ayana's first wedding cake was a dud — it came out flat and dry.
The product launch was a dud; only three customers placed orders that day.
The star player was expected to shine, but in the final game he was a dud.
The experiment was a dud because the equipment had not been checked beforehand.
文法句型
be + a dud
turn out to be + a dud
用法筆記
Often used in the pattern '[subject] be a dud' or '[subject] turn out to be a dud'. Informal; not suitable for serious academic or professional writing.
常見錯誤
2. a casual or slang word for the items you wear, such as shirts, trousers, or jack
a casual or slang word for the items you wear, such as shirts, trousers, or jackets.
Beatrix wore her finest duds to the wedding reception.
always plural: duds
That vintage shop on Elm Street sells cool duds from the 1960s.
Sana packed her warmest duds for the hiking trip in the mountains.
The band wore matching black duds for their concert performance.
文法句型
always plural: duds
用法筆記
Always plural when referring to clothes. Very informal slang, most common in North American English. Avoid in formal writing.
常見錯誤
3. an explosive device that does not detonate as intended — it remains live after b
an explosive device that does not detonate as intended — it remains live after being fired or dropped and needs to be disposed of by specialists.
The bomb squad was called in to dispose of a live dud from the war.
military context: live dud
Soldiers found several unexploded duds scattered across the training ground.
During the excavation, workers uncovered a dud from the Second World War.
The missile was a dud and landed in a field without causing any damage.
Nadia's grandfather kept a rusty dud from the war as a souvenir in his shed.
- misfire
can be a noun or verb; a misfire happens when a weapon fails to shoot correctly
- unexploded ordnance
formal military term for any bomb that did not explode
文法句型
be + a dud
discover/find + a dud
用法筆記
Often appears in news reports about unexploded ordnance. The word emphasizes that the device failed to explode as designed. Distinguish from noun sense 1 (FAILURE), where 'dud' refers to any disappointing thing — this sense is specific to explosives.