back
/bæk/
"back" is a 4-letter English headword indexed on PlainSpell.
The verdict
“back” is in the everyday core of English, ranked #93 in English word frequency and used as an adjective.
- #93
- frequency rank, English
- 4
- letters
- 6
- tracked misspellings
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - At or near the rear.
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 | back |
| Language | English |
| Part of speech | Adjective |
| IPA | /bæk/ |
| Letters | 4 |
| Frequency rank | #93 |
| Misspellings tracked | 6 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Where “back” sits in English frequency
Spelling & Dictionary Insight
The English entry for back is 4 letters long, classified as an adjective, and transcribed in the International Phonetic Alphabet as /bæk/. Corpus data places it at rank #93 in overall English word frequency, putting it firmly in the everyday core of the language. Wiktionary records 7 distinct senses for this headword, so context determines which meaning a reader should apply.
Our generated misspelling index lists 6 likely wrong-spelling variants for back, with forms such as "abck", "bacck", and "backk". 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, "BC", "bad", "bar", and more, where similar look or sound leads writers to substitute one word for another in context.
Etymologically, the entry records: Etymology tree Proto-Indo-European *bʰeg-der.? Proto-Germanic *baką Proto-West Germanic *bak Old English bæc Middle English bak English back From Middle English bak, from Old English bæc, from Proto-West Germanic *bak, from Proto-Germanic *baką, possibly fr… The correct English form is back, spelled B-A-C-K.
Definition
- 1At or near the rear.
- 2Returned or restored to a previous place or condition.
- 3Not current.
- 4Situated away from the main or most frequented areas.
- 5In arrears; overdue.
- 6Moving or operating backward.
- 7Pronounced with the highest part of the body of the tongue toward the back of the mouth, near the soft palate (most often describing a vowel).
Etymology
Etymology tree Proto-Indo-European *bʰeg-der.? Proto-Germanic *baką Proto-West Germanic *bak Old English bæc Middle English bak English back From Middle English bak, from Old English bæc, from Proto-West Germanic *bak, from Proto-Germanic *baką, possibly from Proto-Indo-European *bʰeg- (“to bend”). The adverb represents an aphetic form of aback. Compare Middle Low German bak (“back”), from Old Saxon bak, and West Frisian bekling (“chair back”), Old High German bah, Swedish and Norwegian bak. Cognate with German Bache (“sow [adult female hog]”).
This word in other languages
Common misspellings
Also misspelled as: abck,bacck,backk,bakc,bback,bcak
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of back - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.
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 “back”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is B-A-C-K - every other letter order is a misspelling in standard orthography.
- Say it as /bæk/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Don't mix it up with “BC” - see the side-by-side comparison. back vs BC
- 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.