/ Dictionary / Index A Aniakchak Crater: Meaning and Definition of Find definitions for: An'i•ak'chak Cra'ter Pronunciation: (an'ē-ak'chak, an"-), [key] an active volcanic crater on the Alaskan Peninsula, with a diameter of 6 mi. (10 km). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ani anianiau Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language