Breadcrumb Home > Dictionary > Index S sun letter: Meaning and Definition of Find definitions for: sun' let"ter Pronunciation: [key] — Arabic Gram. Arabic Gram. any letter, as tā or sīn, representing a consonant that assimilates the l of a prefixed definite article. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sunless sunlight TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: praedial Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language