Breadcrumb Home > Dictionary > Index A AK: Meaning and Definition of Find definitions for: AK Pronunciation: [key] Alaska (approved esp. for use with zip code). a.k. Pronunciation: [key] — Slang (vulgar) Slang (vulgar). ass-kisser. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ak (Thesaurus) ajuga a.k.a. ✖ Related Content Daily Word Quiz: restive Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language