ASCII
/ˈæski/
"ascii" is a 5-letter English headword indexed on PlainSpell.
The verdict
“ASCII” is a moderately-common English word, ranked #31,860 in English word frequency and used as a proper noun.
- #31,860
- frequency rank, English
- 5
- letters
- 6
- tracked misspellings
- 9
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Acronym of American Standard Code for Information Interchange.
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 | ASCII |
| Language | English |
| Part of speech | Proper noun |
| IPA | /ˈæski/ |
| Letters | 5 |
| Frequency rank | #31,860 |
| Misspellings tracked | 6 |
| Confusable pairs | 9 |
| Source | Wiktionary (kaikki.org) |
Where “ASCII” sits in English frequency
Spelling & Dictionary Insight
The English entry for ASCII is 5 letters long, classified as a proper noun, and transcribed in the International Phonetic Alphabet as /ˈæski/. Corpus data places it at rank #31,860 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "Acronym of American Standard Code for Information Interchange.".
Our generated misspelling index lists 6 likely wrong-spelling variants for ASCII, with forms such as "acsii", "asccii", and "asci". 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 9 confusable-pair relationships, "Asi", "Asia", "ASIC", and more, where similar look or sound leads writers to substitute one word for another in context.
Wiktionary doesn't record an etymology for this headword, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct English form is ASCII, spelled A-S-C-I-I.
Definition
- 1Acronym of American Standard Code for Information Interchange.
This word in other languages
Common misspellings
Also misspelled as: acsii,asccii,asci,asici,asscii,sacii
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of ASCII - 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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Using “ASCII”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is A-S-C-I-I - every other letter order is a misspelling in standard orthography.
- Say it as /ˈæski/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Don't mix it up with “Asi” - see the side-by-side comparison. ASCII vs Asi
- 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.