umm

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Interjection

1. Implying hesitation.

   - How does a plane fly?

   - Umm, I don't know.

Synonyms

• er
• hmm
• um

Verb

umm (umms, present participle umming; past and past participle ummed)

1. (intransitive, rare) To make the umm sound to express confusion or hesitancy.

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