/ Dictionary / Index A admin.: Meaning and Definition of Find definitions for: admin. Pronunciation: [key] administration. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Admetus adminicle Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language