in depth
"in-depth" is a 7-letter English headword indexed on PlainSpell.
The verdict
“in depth” is outside the top-ranked English vocabulary, used as a prep_phrase - the kind of word writers most often double-check.
- Unranked
- below top-frequency English
- 8
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Comprehensive, thorough, detailed.
| Property | Value |
|---|---|
| Headword | in depth |
| Language | English |
| Part of speech | Prep_phrase |
| Letters | 8 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “in depth” sits in English frequency
Spelling & Dictionary Insight
The English entry for in depth is 8 letters long, classified as a prep_phrase. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader. The dominant gloss from Wiktionary reads: "Comprehensive, thorough, detailed.".
No generated misspelling entries exist for in depth in our index, since its letter sequence doesn't invite the usual edit-distance slips. Our dataset records no confusable match here, which tends to mean the word is visually distinctive enough to stand on its own.
Wiktionary doesn't record an etymology for this headword, leaving phoneme-to-grapheme mapping as the best guide to its spelling rather than a borrowing history. The correct English form is in depth, spelled I-N- -D-E-P-T-H.
Definition
- 1Comprehensive, thorough, detailed.
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Using “in depth”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is I-N- -D-E-P-T-H - every other letter order is a misspelling in standard orthography.
- 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.