Breadcrumb Home > Thesaurus > E Synonyms of equinox Find synonyms for: Noun 1. equinox, cosmic time usage: either of two times of the year when the sun crosses the plane of the earth's equator and day and night are of equal length 2. equinoctial point, equinox, celestial point usage: (astronomy) either of the two celestial points at which the celestial equator intersects the ecliptic WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of equinox (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. The Olympian Gods and Goddesses (Their Names & Powers) The Largest States in the U.S. by Area Current Events This Week: March 2023 Christina Rossetti: Jesus, Do I Love Thee? 10 Biggest Waterfalls in the World (Tallest, Widest, & Most Volume!) World Religions: What People Believe and Where ✖ Related Content Daily Word Quiz: indolent Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language