suffix
/ˈsʌfɪks/
"suffix" is a 6-letter English headword indexed on PlainSpell.
The verdict
“suffix” is a moderately-common English word, ranked #27,302 in English word frequency and used as a noun.
- #27,302
- frequency rank, English
- 6
- letters
- 7
- tracked misspellings
- 3
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A morpheme added at the end of a word to modify the word's meaning.
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 | suffix |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈsʌfɪks/ |
| Letters | 6 |
| Frequency rank | #27,302 |
| Misspellings tracked | 7 |
| Confusable pairs | 3 |
| Source | Wiktionary (kaikki.org) |
Where “suffix” sits in English frequency
Spelling & Dictionary Insight
The English entry for suffix is 6 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈsʌfɪks/. Corpus data places it at rank #27,302 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 3 distinct senses for this headword, so context determines which meaning a reader should apply.
Our generated misspelling index lists 7 likely wrong-spelling variants for suffix, with forms such as "sfufix", "ssuffix", and "suffixx". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 3 confusable-pair relationships, "Sufi", "suffer", "suffice", a pairing that trips writers up because the two words share enough sound or shape to blur together.
Etymologically, the entry records: Borrowed from Latin suffīxus (“suffix”), from sub- (“under”) + fīxus (perfect passive participle of fīgere (“to fasten, fix”)), equivalent to sub- + -fix. The correct English form is suffix, spelled S-U-F-F-I-X.
Definition
- 1A morpheme added at the end of a word to modify the word's meaning.
- 2A subscript.
- 3A final segment of a string of characters.
Etymology
Borrowed from Latin suffīxus (“suffix”), from sub- (“under”) + fīxus (perfect passive participle of fīgere (“to fasten, fix”)), equivalent to sub- + -fix.
This word in other languages
Common misspellings
Also misspelled as: sfufix,ssuffix,suffixx,suffxi,sufifx,sufix,usffix
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of suffix - 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
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Using “suffix”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is S-U-F-F-I-X - every other letter order is a misspelling in standard orthography.
- Say it as /ˈsʌfɪks/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Don't mix it up with “Sufi” - see the side-by-side comparison. suffix vs Sufi
- Browse more English words and confusable pairs in the same reference. English words
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.