noun (1)
dum·​dum | \ ˈdəm-ˌdəm How to pronounce dumdum (audio) \

Definition of dumdum

 (Entry 1 of 2)

: a bullet (such as one with a hollow point) that expands more than usual upon hitting an object


noun (2)
\ ˈdəm-ˌdəm How to pronounce dum-dum (audio) \

Definition of dum-dum (Entry 2 of 2)

: a stupid person : dummy

Synonyms & Antonyms for dumdum

Synonyms: Noun (2)

Antonyms: Noun (2)

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First Known Use of dumdum

Noun (1)

circa 1889, in the meaning defined above

Noun (2)

1928, in the meaning defined above

History and Etymology for dumdum

Noun (1)

Dum Dum, arsenal near Calcutta, India

Noun (2)

reduplication of dumb entry 1

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Time Traveler for dumdum

Time Traveler

The first known use of dumdum was circa 1889

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Cite this Entry

“Dumdum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dumdum. Accessed 16 Apr. 2021.

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English Language Learners Definition of dumdum

: a bullet that expands or explodes when it hits an object in order to cause greater damage

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