Word.ws English Dictionary

Plural of equinox

regular plural

The plural of equinox is equinoxes.

Forms of equinox

Singularequinox /ˈɛkwɪnɒks/
Pluralequinoxes
Countablecountable

Equinoxes in a sentence

  • We mark solstices and equinoxes by festivals rooted in myths.1980 December 20, Nancy Walker, “Happy Holidays”, in Gay Community News, volume 8, number 22, page 16. From the entry reaffirmation

Meaning of equinox

  1. noun One of two times in the year (one in March and the other in September) when the length of the day and the night are equal, which occurs when the sun is directly overhead at the equator; this marks the beginning of spring in one hemisphere and autumn in the other.
  2. noun The circumstance of a twenty-four hour time period having the day and night of equal length.
  3. noun One of the two points in space where the apparent path of the Sun intersects with the equatorial plane of the Earth.

Full definition of equinox

Questions about the plural of equinox

What is the plural of equinox?
The plural of equinox is equinoxes.
Is equinox countable?
Equinox is a countable noun.

Source and license

Adapted from Wiktionary: equinox (page history and authors) and the entries of its forms. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws left out forms marked obsolete, archaic, rare or dialectal and added the examples. Wiktionary data of 2026-09-02.

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