sleeping barber problem
Detailed reference entry for the English word "sleeping-barber-problem", 23-letters, with pronunciation in International Phonetic Alphabet notation, etymology traced through Germanic and Romance roots where applicable, common misspelling variants catalogued from Wiktionary, and usage frequency ranked against an open word-frequency list covering the top 100,000 English words. PlainSpell covers English, Spanish, Portuguese, French, and German spelling with confusable-pair detection that highlights visually and phonetically similar words. This entry for "sleeping-barber-problem" includes synonyms, antonyms, homophones, and cross-language translation pointers sourced from Wiktionary via the kaikki.org extract. Whether you are verifying the correct spelling of "sleeping-barber-problem" for academic writing, checking homophone confusion, or exploring etymological origins, this page provides a citation-backed, free reference that requires no sign-up.
The verdict
“sleeping barber problem” 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
- 23
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A problem of interprocess communication and synchronization where one process responds to requests from multiple other threads and sleeps when not doing so. In some cases this may lead to an undesi...
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See how sleeping barber problem compares against similar English words.
Browse all word comparisons →| Property | Value |
|---|---|
| Headword | sleeping barber problem |
| Language | English |
| Part of speech | Noun |
| Letters | 23 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “sleeping barber problem” sits in English frequency
Spelling & Dictionary Insight
The English entry for sleeping barber problem is 23 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 problem of interprocess communication and synchronization where one process responds to requests from multiple other threads and sleeps when not doing so. In some cases this may lead to an undesi...".
No misspelling variants are generated for sleeping barber problem in our index, suggesting the orthography follows predictable English patterns. It is not paired with a close-neighbour confusable in our dataset, which tends to mean the word is visually distinctive enough to stand on its own.
Etymologically, the entry records: By analogy with a barber who sleeps while not cutting hair, and whose customers wake him on arrival. Since actions such as entering the salon and looking around take variable amounts of time, this may lead to a situation where both barber and customer(s) ar… Root origin matters for spelling because borrowed morphemes (Greek, Latin, Old French, Old English) carry their source-language orthographic conventions into modern English, which is why historical etymology is often the cleanest predictor of whether a cluster like "-ough", "-eau", or "-tion" will appear. For readers arriving here from a spelling check, the authoritative guidance is: the correct English form is sleeping barber problem, spelled S-L-E-E-P-I-N-G- -B-A-R-B-E-R- -P-R-O-B-L-E-M, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.
Definition
- 1A problem of interprocess communication and synchronization where one process responds to requests from multiple other threads and sleeps when not doing so. In some cases this may lead to an undesirable state where components are waiting for each other despite being ready.
Etymology
By analogy with a barber who sleeps while not cutting hair, and whose customers wake him on arrival. Since actions such as entering the salon and looking around take variable amounts of time, this may lead to a situation where both barber and customer(s) are futilely waiting for each other.
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.
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Free to reuse with attribution (CC BY-SA). Copy the citation:
PlainSpell, “sleeping barber problem, English word data” (May 6, 2026). Derived from Wiktionary (kaikki.org, CC BY-SA) and an open word-frequency list. https://plainspell.com/en/word/sleeping-barber-problem
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Using “sleeping barber problem”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is S-L-E-E-P-I-N-G- -B-A-R-B-E-R- -P-R-O-B-L-E-M - every other letter order is a misspelling in standard orthography.
- Browse more English words and confusable pairs in the same reference. English words
Nearby English words
Other entries that begin with the letter S in our English index: