equinox
/ˈɛkwɪnɒks/
"equinox" is a 7-letter English headword indexed on PlainSpell.
The verdict
“equinox” has 9 generated spelling variants in the English index at frequency #28,191. The variants make it a useful spelling check.
- #28,191
- frequency rank, English
- 2,246
- “E” headwords
- 9
- tracked misspellings
- 1
- confusable pair
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - 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 ...
Corpus desk
Index EN-equinox · equinox · English
equinox · rank #28,191 · 9 variants · 1 confusable
- FREQ-MID #28,191
- LEN-LONG 7 letters
- VOW-4 4 vowels
- CONFUS-LOW 1 pairs
- VAR-MID 9 variants
- BOOK-MID 2,246
- PHOTO-FINISH Ephraim
Nearest frequency peer: Ephraim (-1 rank slots)
Read with this headword: Spelling guide for this pattern
Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.
Rank peers near misspelling magnet “equinox”
Same rarity band: useful when a typo lands on a peer headword
- enforceable
enforceable
71,812 corpus weight
- Ephraim
Ephraim
71,811 corpus weight
- equinox
equinox
71,810 corpus weight
- Ericsson
Ericsson
71,809 corpus weight
- erotica
erotica
71,808 corpus weight
- ERP
ERP
71,807 corpus weight
What this shows “equinox” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.
Visual similarity to commonly confused words
How many letter changes separate each confused pair (Levenshtein distance, normalized).
Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).
| Property | Value |
|---|---|
| Headword | equinox |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈɛkwɪnɒks/ |
| Letters | 7 |
| Frequency rank | #28,191 |
| Misspellings tracked | 9 |
| Confusable pairs | 1 |
| Source | Wiktionary (kaikki.org) |
Frequency seat of misspelling magnet “equinox”
A misspelling magnet
The generator records 9 spelling variants around equinox (IPA /ˈɛkwɪnɒks/), anoun. Corpus frequency is #28,191 among 2,246 “E” headwords. Wiktionary lists 5 senses, so context still picks the gloss.
Our generated misspelling index lists 9 likely wrong-spelling variants for equinox, with forms such as "eqiunox", "eqquinox", and "equinnox". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 1 confusable-pair relationship, "equine", since the words sound or look close enough that writers reach for the wrong one mid-sentence.
Etymologically, the entry records: PIE word *nókʷts From Middle English equinox, equinoxe, equynox (“one of the two periods in the year when the day and night are of equal length, equinox; either the zodiac sign Aries or Libra, in which the sun crosses the celestial equator”), from Old Fren… The correct English form is equinox, spelled E-Q-U-I-N-O-X.
Definition
- 1One 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.
- 2The circumstance of a twenty-four hour time period having the day and night of equal length.
- 3One of the two points in space where the apparent path of the Sun intersects with the equatorial plane of the Earth.
- 4A gale (“very strong wind”) once thought to occur more frequently around the time of an equinox (sense 1), now known to be a misconception; an equinoctial gale.
- 5A celestial equator (“great circle on the celestial sphere, coincident with the plane of the Earth's equator (the equatorial plane)”); also, the Earth's equator.
Recorded use
Wiktionary examplesThese source excerpts show how equinox appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
[T]he Months of March and September, the tvvo Æquinoxes of Our year, are the moſt vvindy and tempeſtuous, the moſt unſettled and unequable of Seaſons in moſt Countries of the VVorld.
The four grand and ſolemn Bardic days are, of ancient uſage, the tvvo equinoxes, and the tvvo ſolſtices; the nevv and full moons are alſo, ſubordinately, ſolemn Bardic days: […]
Etymology
PIE word *nókʷts From Middle English equinox, equinoxe, equynox (“one of the two periods in the year when the day and night are of equal length, equinox; either the zodiac sign Aries or Libra, in which the sun crosses the celestial equator”), from Old French equinoce, equinoxe (modern French équinoxe), or from its etymon Medieval Latin ēquinoxium, ēquinoctium, from Latin aequinoctium (“equinox”), from aequus (“equal”) + nox (“night”) (ultimately derived from Proto-Indo-European *nókʷts (“night”)) + -ium (suffix forming abstract nouns). The Latin word, ultimately adopted in Middle English and modern English, displaced Old English efnniht (modern English evennight). The rare alternative plural form equinoctes treats equinox as if it were a Latin word; the plural of Latin nox (“night”) is noctēs.
This word in other languages
Common misspellings
Also misspelled as:
- eqiunox
- eqquinox
- equinnox
- equinoxx
- equinxo
- equionx
- equniox
- euqinox
- qeuinox
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of equinox - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "equinox", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 7 letters (nearest by frequency rank).
Similar misspelling depth
Headwords with a similar count of attested misspellings (9 here; floor ≥5).