5150
/ˈfɪf.ti.wənˈfɪf.ti/
"5150" is a 0-letter English headword indexed on PlainSpell.
The verdict
“5150” 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
- 4
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - One who should be involuntarily confined.
| Property | Value |
|---|---|
| Headword | 5150 |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈfɪf.ti.wənˈfɪf.ti/ |
| Letters | 4 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “5150” sits in English frequency
Spelling & Dictionary Insight
The English entry for 5150 is 4 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈfɪf.ti.wənˈfɪf.ti/. 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: "One who should be involuntarily confined.".
No misspelling variants are generated for 5150 in our index, since its letter sequence doesn't invite the usual edit-distance slips. Our confusable-pair dataset has no match for it, suggesting its spelling stands apart enough that readers rarely confuse it with something else.
Etymologically, the entry records: From Article 1, Section 5150 of California's Welfare and Institutions Code, signed into law in 1967, regarding involuntary commitment for psychological evaluation and treatment. Popularized outside of California due to the spread of popular media produced i… The correct English form is 5150, spelled 5-1-5-0.
Definition
- 1One who should be involuntarily confined.
Etymology
From Article 1, Section 5150 of California's Welfare and Institutions Code, signed into law in 1967, regarding involuntary commitment for psychological evaluation and treatment. Popularized outside of California due to the spread of popular media produced in the state.
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 “5150”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is 5-1-5-0 - every other letter order is a misspelling in standard orthography.
- Say it as /ˈfɪf.ti.wənˈfɪf.ti/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- 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.