/ Dictionary / Index J Jeff: Meaning and Definition of Find definitions for: Jeff Pronunciation: ( jef), [key] — n. a male given name, form of Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. jefe* Jeff Davis pie Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language