Breadcrumb Home > Thesaurus > S Synonyms of secant Find synonyms for: Noun 1. secant, straight line usage: a straight line that intersects a curve at two or more points 2. secant, sec, trigonometric function, circular function usage: ratio of the hypotenuse to the adjacent side of a right-angled triangle WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of secant (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: polymath Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language