/ Dictionary / Index A alarum: Meaning and Definition of Find definitions for: a•lar•um Pronunciation: (u-lar'um, u-lär'-), [key] — n. Archaic. alarm. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: alarum (Thesaurus) alarm reaction alarums and excursions Related Content Daily Word Quiz: pedagogy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language