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definitions
  • synonyms

um

or umm

[uhm, uhn, uh m, uhn]
See more synonyms on Thesaurus.com
interjection
  1. (used as an expression of doubt, hesitation, deliberation, interest, etc.)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for umm

um1

interjection
  1. a representation of a common sound made when hesitating in speech

um2

the internet domain name for
  1. US Minor Outlying Islands
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for umm

um

a sound denoting hesitation, 1670s.

Online Etymology Dictionary, © 2010 Douglas Harper