/ Dictionary / Index M mem: Meaning and Definition of Find definitions for: mem Pronunciation: (mem), [key] — n. the thirteenth letter of the Hebrew alphabet. the consonant sound represented by this letter. mem. Pronunciation: [key] member. memoir. memorandum. memorial. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: mem (Thesaurus) Melvindale member Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language