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um

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interjection \a prolonged m sound, əm\

Definition of um

  1. —used to indicate hesitation well, um, I don't know

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Devilish Words

First Known Use of um

1672

UM Defined for English Language Learners

um

play
interjection

Definition of um for English Language Learners

  • —used when you hesitate because you are not sure about what to say

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oppugn

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to fight against or to call in question

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