Dictionary
h'm
Pronunciation: (hmm), [key]
—interj.
(used typically to express thoughtful absorption, hesitation, doubt, or perplexity.) Also,hmm.
HM
Hispanic male.
hm
hectometer; hectometers.
H.M.
1. Her Majesty.
2. His Majesty.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.