/ Dictionary / Index S staff sergeant major: Meaning and Definition of Find definitions for: staff' ser"geant ma'jor Pronunciation: [key] — U.S. Army. U.S. Army. a noncommissioned officer equivalent in rank to a command sergeant major but having no command responsibility. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. staff sergeant stag Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language