/ Dictionary / Index A achy: Meaning and Definition of Find definitions for: ach•y Pronunciation: (ā'kē), [key] — ach•i•er, ach•i•est. having or causing an aching sensation: an achy back. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: achy (Thesaurus) Achtung* acicula Related Content Daily Word Quiz: exemplary Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language