Multiple choice

Plural of the word 'equinox' is

  1. equinoxs

  2. equinoxes

  3. equinoxcess

  4. equinoxses
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B Correct answer
Explanation

Words ending in 'x' form their plural by adding '-es', so 'equinox' becomes 'equinoxes'. This follows standard English pluralization rules for words ending in s, x, z, ch, or sh.

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