/ Dictionary / Index S sec: Meaning and Definition of Find definitions for: sec Pronunciation: (sek), [key] — adj. (of wines) dry; not sweet. sec Pronunciation: (sek), [key] — n. Informal. second (def. 2). SEC Pronunciation: [key] — U.S. Govt. U.S. Govt. Securities and Exchange Commission: a board, consisting of five members, charged with regulating the public offer and sale of securities. sec Pronunciation: [key] secant. second. section. sec−1 Pronunciation: [key] arc secant. sec. Pronunciation: [key] second. secondary. secretary. section. sector. according to. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sec (Thesaurus) sebum secant Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language