instalment
/ɪnˈstɔːlmənt/
"instalment" is a 10-letter English headword indexed on PlainSpell.
The verdict
“instalment” has 15 generated spelling variants in the English index at frequency #27,513. The variants make it a useful spelling check.
- #27,513
- frequency rank, English
- 17,902
- “I” headwords
- 15
- tracked misspellings
- 2
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Australia, British, and Canada standard spelling of installment.
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 | instalment |
| Language | English |
| Part of speech | Noun |
| IPA | /ɪnˈstɔːlmənt/ |
| Letters | 10 |
| Frequency rank | #27,513 |
| Misspellings tracked | 15 |
| Confusable pairs | 2 |
| Source | Wiktionary (kaikki.org) |
Where “instalment” sits in English frequency
A misspelling magnet
The generator records 15 spelling variants around instalment (IPA /ɪnˈstɔːlmənt/), anoun. Corpus frequency is #27,513 among 17,902 “I” headwords. Dominant gloss: "Australia, British, and Canada standard spelling of installment.".
Our generated misspelling index lists 15 likely wrong-spelling variants for instalment, with forms such as "innstalment", "insatlment", and "insstalment". 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 2 confusable-pair relationships, "instrument", "installment", since the words sound or look close enough that writers reach for the wrong one mid-sentence.
No explicit etymology string is stored for this entry, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct English form is instalment, spelled I-N-S-T-A-L-M-E-N-T.
Definition
- 1Australia, British, and Canada standard spelling of installment.
Common misspellings
Also misspelled as:
- innstalment
- insatlment
- insstalment
- instalemnt
- instalmennt
- instalmentt
- instalmetn
- instalmment
- instalmnet
- instamlent
- instlament
- insttalment
- intsalment
- isntalment
- nistalment
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of instalment - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.
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 "instalment"?
What does "instalment" mean?
What words are commonly confused with "instalment"?
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Using “instalment”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is I-N-S-T-A-L-M-E-N-T - every other letter order is a misspelling in standard orthography.
- Say it as /ɪnˈstɔːlmənt/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Don't mix it up with “instrument” - see the side-by-side comparison. instalment vs instrument
- Browse more English words and confusable pairs in the same reference. English words
Same frequency band
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.