longest
/ˈlɒŋɡəst/
"longest" is a 7-letter English headword indexed on PlainSpell.
The verdict
“longest” is a regularly-used English word, ranked #4,962 in English word frequency and used as an adjective.
- #4,962
- frequency rank, English
- 7
- letters
- 11
- tracked misspellings
- 5
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - superlative form of long: most long
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 | longest |
| Language | English |
| Part of speech | Adjective |
| IPA | /ˈlɒŋɡəst/ |
| Letters | 7 |
| Frequency rank | #4,962 |
| Misspellings tracked | 11 |
| Confusable pairs | 5 |
| Source | Wiktionary (kaikki.org) |
Where “longest” sits in English frequency
Spelling & Dictionary Insight
The English entry for longest is 7 letters long, classified as an adjective, and transcribed in the International Phonetic Alphabet as /ˈlɒŋɡəst/. Corpus data places it at rank #4,962 in overall English word frequency, indicating it appears regularly in written and spoken text. The dominant gloss from Wiktionary reads: "superlative form of long: most long".
Our generated misspelling index lists 11 likely wrong-spelling variants for longest, with forms such as "llongest", "lnogest", and "lognest". 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 5 confusable-pair relationships, "longs", "lowest", "longer", and more, where similar look or sound leads writers to substitute one word for another in context.
Etymologically, the entry records: long + -est The correct English form is longest, spelled L-O-N-G-E-S-T.
Definition
- 1superlative form of long: most long
Etymology
long + -est
Common misspellings
Also misspelled as: llongest,lnogest,lognest,lonegst,longesst,longestt,longets,longgest,longset,lonngest,olngest
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of longest - 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 “longest”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is L-O-N-G-E-S-T - every other letter order is a misspelling in standard orthography.
- Say it as /ˈlɒŋɡəst/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Don't mix it up with “longs” - see the side-by-side comparison. longest vs longs
- 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.