/ Dictionary / Index A Achill: Meaning and Definition of Find definitions for: Ach•ill Pronunciation: (ak'ul), [key] — n. an island off the coast of NW Ireland. 14 mi. (23 km) long; 11 mi. (18 km) wide. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. achilary achillea Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language