Unix
/ˈjuː.nɪks/
"unix" is a 4-letter English headword indexed on PlainSpell.
The verdict
“Unix” has 5 generated spelling variants in the English index at frequency #19,495. The variants make it a useful spelling check.
- #19,495
- frequency rank, English
- 1,433
- “U” headwords
- 5
- tracked misspellings
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - An operating system that shares the original source code by Dennis Ritchie and Ken Thompson.
Corpus desk
Index EN-unix · Unix · English
Unix · rank #19,495 · 5 variants · 20 confusables
- FREQ-MID #19,495
- LEN-MID 4 letters
- VOW-2 2 vowels
- CONFUS-HIGH 20 pairs
- VAR-MID 5 variants
- BOOK-MID 1,433
- PHOTO-FINISH uniting
Nearest frequency peer: uniting (-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 “Unix”
Same rarity band: useful when a typo lands on a peer headword
- unanswered
unanswered
80,509 corpus weight
- unethical
unethical
80,508 corpus weight
- uniting
uniting
80,507 corpus weight
- Unix
Unix
80,506 corpus weight
- uptown
uptown
80,505 corpus weight
- urinary
urinary
80,504 corpus weight
What this shows “Unix” 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 | Unix |
| Language | English |
| Part of speech | Proper noun |
| IPA | /ˈjuː.nɪks/ |
| Letters | 4 |
| Frequency rank | #19,495 |
| Misspellings tracked | 5 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Frequency seat of misspelling magnet “Unix”
A misspelling magnet
The generator records 5 spelling variants around Unix (IPA /ˈjuː.nɪks/), aproper noun. Corpus frequency is #19,495 among 1,433 “U” headwords. Wiktionary lists 2 senses, so context still picks the gloss.
Our generated misspelling index lists 5 likely wrong-spelling variants for Unix, with forms such as "nuix", "uinx", and "unixx". 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 20 confusable-pair relationships, "uno", "Uri", "UPI", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.
Etymologically, the entry records: Etymology tree English Multics ▲ English eunuchinflu. English Unix A pun on Multics to sound like eunuchs, as Unix was considered to be an emasculated Multics (see multi- and uni-). Likely coined by Canadian computer scientist Brian Kernighan in 1970. The correct English form is Unix, spelled U-N-I-X.
Definition
- 1An operating system that shares the original source code by Dennis Ritchie and Ken Thompson.
- 2An operating system largely compatible with Unix that qualifies for use of the UNIX trademark, currently owned by The Open Group.
Etymology
Etymology tree English Multics ▲ English eunuchinflu. English Unix A pun on Multics to sound like eunuchs, as Unix was considered to be an emasculated Multics (see multi- and uni-). Likely coined by Canadian computer scientist Brian Kernighan in 1970.
Common misspellings
Also misspelled as:
- nuix
- uinx
- unixx
- unnix
- unxi
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of Unix - 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 "Unix", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 4 letters (nearest by frequency rank).
Similar misspelling depth
Headwords with a similar count of attested misspellings (5 here; floor ≥5).