mental institution
"mental-institution" is a 17-letter English headword indexed on PlainSpell.
The verdict
“mental institution” is outside the top-ranked English vocabulary, used as a noun - the kind of word writers most often double-check.
- Unranked
- below top-frequency English
- 18
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A psychiatric hospital, or the psychiatric ward of a hospital.
| Property | Value |
|---|---|
| Headword | mental institution |
| Language | English |
| Part of speech | Noun |
| Letters | 18 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “mental institution” sits in English frequency
Spelling & Dictionary Insight
The English entry for mental institution is 18 letters long, classified as a noun. 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: "A psychiatric hospital, or the psychiatric ward of a hospital.".
The misspelling generator found no plausible variants for mental institution, and the word's spelling is regular enough that our generator found nothing worth flagging. No close-neighbour confusable shows up for this headword in our dataset, since its spelling is unusual enough that it doesn't cluster with a lookalike.
This headword's origin isn't recorded in our source data, so its spelling is best read as a straightforward mapping from sound to letter. The correct English form is mental institution, spelled M-E-N-T-A-L- -I-N-S-T-I-T-U-T-I-O-N.
Definition
- 1A psychiatric hospital, or the psychiatric ward of a hospital.
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 “mental institution”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is M-E-N-T-A-L- -I-N-S-T-I-T-U-T-I-O-N - 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.