equation

/ɪˈkweɪ.ʒən/

//ɪˈkweɪ.ʒən// noun

By · According to Wiktionary data (CC BY-SA) ·

"equation" is a 8-letter English headword indexed on PlainSpell.

The verdict

“equation” has 11 generated spelling variants in the English index at frequency #6,901. The variants make it a useful spelling check.

#6,901
frequency rank, English
2,246
“E” headwords
11
tracked misspellings
6
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The act or process of equating two or more things, or the state of those things being equal (that is, identical).

Corpus desk

Index EN-equation · equation · English

equation · rank #6,901 · 11 variants · 6 confusables

  • FREQ-COMMON #6,901
  • LEN-LONG 8 letters
  • VOW-5 5 vowels
  • CONFUS-MID 6 pairs
  • VAR-MID 11 variants
  • BOOK-MID 2,246
  • PHOTO-FINISH extract

Nearest frequency peer: extract (+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 “equation”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

What this shows “equation” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

equation vs equator
75% similar
equation vs eruption
75% similar
equation vs elation
75% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for equation
PropertyValue
Headwordequation
LanguageEnglish
Part of speechNoun
IPA/ɪˈkweɪ.ʒən/
Letters8
Frequency rank#6,901
Misspellings tracked11
Confusable pairs6
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “equation”

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).equationlands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Same rarity band neighbours include “extract” (#6,902), “enthusiasm” (#6,899), “ego” (#6,898). Among 2,246 “E” headwords, “equation” is #6,901. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 11 spelling variants around equation (IPA /ɪˈkweɪ.ʒən/), anoun. Corpus frequency is #6,901 among 2,246 “E” headwords. Wiktionary lists 3 senses, so context still picks the gloss.

Our generated misspelling index lists 11 likely wrong-spelling variants for equation, with forms such as "eqaution", "eqquation", and "equaiton". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 6 confusable-pair relationships, "equator", "eruption", "elation", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From Old French, from Latin aequātiō (“an equalizing”). Morphologically equate + -ion The correct English form is equation, spelled E-Q-U-A-T-I-O-N.

Definition

  1. 1
    The act or process of equating two or more things, or the state of those things being equal (that is, identical).
  2. 2
    An assertion that two expressions are equal, expressed by writing the two expressions separated by an equal sign; in mathematical problems, equations describe various essential aspects of the problem, each of which contributes to the resolution of the problem in part.
  3. 3
    A small correction to observed values to remove the effects of systematic errors in an observation.

Recorded use

Wiktionary examples

These source excerpts show how equation appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. We need to bring the balance of power into equation
  2. The cultural equation of love with suffering is similar to the equation of love with an experience of both transcendence and consummation in which love is affirmed in an ostentatious display of self loss.

Etymology

From Old French, from Latin aequātiō (“an equalizing”). Morphologically equate + -ion

This word in other languages

ecuación(Español)équation(Français)Ausgleich(Deutsch)equação(Português)

Common misspellings

Also misspelled as:

  • eqaution
  • eqquation
  • equaiton
  • equasion
  • equatino
  • equationn
  • equatoin
  • equattion
  • equtaion
  • euqation
  • qeuation

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of equation - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.

eqaution2eqquation1equaiton2equasion1equatino2equationn1equatoin2equattion1
Edit distance from "equation"

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

How do you spell "equation"?
"equation" is spelled E-Q-U-A-T-I-O-N. The IPA pronunciation is /ɪˈkweɪ.ʒən/.
What does "equation" mean?
As a noun, "equation" means: The act or process of equating two or more things, or the state of those things being equal (that is, identical).
What words are commonly confused with "equation"?
"equation" is commonly confused with "equator", "eruption", "elation". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "equation"?
The IPA (International Phonetic Alphabet) transcription for "equation" is /ɪˈkweɪ.ʒən/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "equation"?
From Old French, from Latin aequātiō (“an equalizing”). Morphologically equate + -ion See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "equation", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 8 letters (nearest by frequency rank).

diamonds#6,889ideology#6,919ordering#6,943platinum#6,948

Similar misspelling depth

Headwords with a similar count of attested misspellings (11 here; floor ≥5).

extract11 variantsflowing11 variantsdignity11 variantsinsects11 variants

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list