/ Dictionary / Index Y young one: Meaning and Definition of Find definitions for: young one Pronunciation: (yung' un, wun), [key] a child or offspring: They have five young ones and another on the way. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. young man Young plan Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language