/ Dictionary / Index T Tallis: Meaning and Definition of Find definitions for: Tal•lis Pronunciation: (tal'is), [key] c1505–85, English organist and composer, esp. of church music. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tallis (Thesaurus) Tallinn tallish Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language