Breadcrumb Home > Dictionary > Index S SE: Meaning and Definition of Find definitions for: SE Pronunciation: [key] southeast. southeastern. Standard English. Se Pronunciation: [key] — Symbol, Chem. selenium. se- Pronunciation: [key] a prefix occurring in loanwords from Latin, where it meant “apart”: seduce; select. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: se (Thesaurus) SDS sea TrendingHere are the facts and trivia that people are buzzing about. The Book of Philippians: Summary Current Events This Week: May 2023 Preamble of the United Nations Charter Queen Victoria Books of the Bible: New Testament Books in Order The 88 Recognized Constellations ✖ Related Content Daily Word Quiz: serendipity Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language