(Translated by https://www.hiragana.jp/)
K-9 unit - Wiktionary, the free dictionary
Wiktionary

K-9 unit

English

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Etymology

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Humorous homophone of canine from an old vaudeville show.

Noun

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K-9 unit (plural K-9 units)

  1. (US) A police dog or a police dog and its handler.
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