/ Dictionary / Index M muster: Meaning and Definition of Find definitions for: mus•ter Pronunciation: (mus'tur), [key] — v.t. to assemble (troops, a ship's crew, etc.), as for battle, display, inspection, orders, or discharge. to gather, summon, rouse (often fol. by up): He mustered all his courage. —v.i. to assemble for inspection, service, etc., as troops or forces. to come together; collect; assemble; gather. to enlist into service in the armed forces. to discharge from service in the armed forces: He will be mustered out of the army in only two more months. —n. an assembling of troops or persons for formal inspection or other purposes. an assemblage or collection. the act of mustering. Also called(formerly) a list of the persons enrolled in a military or naval unit. Your grades don't pass muster. to pass a cursory inspection. to measure up to a certain standard; be adequate:Your grades don't pass muster. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: muster (Thesaurus) musteline Muster Day Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language