/ Dictionary / Index Y yabby: Meaning and Definition of Find definitions for: yab•by Pronunciation: (yab'ē), [key] — n. a small Australian crayfish, of the genus Cherax, inhabiting streams and water holes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. yabber Yablonovyy Range Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language