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hm

1 American  

  1. hectometer; hectometers.

h'm 2 American  
[hmm] / hmm /
Or hmm

interjection

  1. (used typically to express thoughtful absorption, hesitation, doubt, or perplexity.)

HM 3 American  

abbreviation

  1. Hispanic male.

H.M. 4 American  

abbreviation

  1. Her Majesty.

  2. His Majesty.

HM 1 British  

abbreviation

  1. His ( or Her) Majesty

  2. heavy metal (sense 1)

  3. headmaster; headmistress

"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
hm 2 British  

symbol

  1. hectometre

"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
hm 3 British  

abbreviation

  1. Heard and McDonald 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
h'm 4 British  
/ hmmm /

interjection

  1. used to indicate hesitation, doubt, assent, pleasure, etc

"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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“Some self-reflection of, hm, I may be guilty of some of these things toward her as well.”

From Los Angeles Times • Nov. 6, 2025

Manager Scott Servais said before the game they wouldn’t push hm too far due to his overall usage as well as the blister issue that put him on the injured list before the All-Star break.

From Seattle Times • Jul. 21, 2023

And the IRS said because he had now an advocate, the agency could no longer speak with hm directly.

From Washington Times • Jan. 1, 2023

He had lost people close to hm in the tragic Cal Poly football team plane crash.

From Fox News • Dec. 28, 2021

“A mouse, hm? That’s probably it. A lot of students have complained about mice in their ceiling lately. I suppose we’ll have to put out some traps.”

From "The Mysterious Benedict Society" by Trenton Lee Stewart

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.