/ Dictionary / Index T tanka: Meaning and Definition of Find definitions for: tan•ka Pronunciation: (täng'ku), [key] — pl. -kas, -ka. a Japanese poem consisting of 31 syllables in 5 lines, with 5 syllables in the first and third lines and 7 in the others. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tanka (Thesaurus) tank tankage Related Content Daily Word Quiz: veto Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language