/ Dictionary / Index H h'm: Meaning and Definition of Find definitions for: h'm Pronunciation: (hmm), [key] — interj. (used typically to express thoughtful absorption, hesitation, doubt, or perplexity.) HM Pronunciation: [key] Hispanic male. hm Pronunciation: [key] hectometer; hectometers. H.M. Pronunciation: [key] Her Majesty. His Majesty. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. HL hinge HMAS Related Content Daily Word Quiz: inutiae Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language