sleeping policeman

noun

"sleeping-policeman" is a 17-letter English headword indexed on PlainSpell.

The verdict

“sleeping policeman” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency English
18
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A speed bump.

Corpus desk

Index EN-sleeping-policeman · sleeping policeman · English

sleeping policeman · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 18 letters
  • VOW-7 7 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "S" thin
  • PHOTO-UNK Peer pending

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for sleeping policeman
PropertyValue
Headwordsleeping policeman
LanguageEnglish
Part of speechNoun
Letters18
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “sleeping policeman” in English

sleeping policemanranks outside the top 100,000 English headwords, in the long tail of specialist, archaic, or seldom-used vocabulary, exactly the territory where a reader stops mid-sentence to double-check spelling.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

sleeping policeman is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A speed bump.".

No generated misspelling entries exist for sleeping policeman in our index, and the word's spelling is regular enough that our generator found nothing worth flagging. This headword has no recorded confusable partner, which typically means the spelling is too distinctive to be mistaken for another word.

This entry's etymology isn't recorded, so any spelling logic here comes from how the word's sounds map to letters, not a documented origin story. The correct English form is sleeping policeman, spelled S-L-E-E-P-I-N-G- -P-O-L-I-C-E-M-A-N.

Definition

  1. 1
    A speed bump.

Recorded use

Wiktionary example

These source excerpts show how sleeping policeman appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. We don't care much to figure out terms like "brolly" (umbrella) and "sleeping policeman" (speed bump).

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

How do you spell "sleeping policeman"?
"sleeping policeman" is spelled S-L-E-E-P-I-N-G- -P-O-L-I-C-E-M-A-N.
What does "sleeping policeman" mean?
As a noun, "sleeping policeman" means: A speed bump.
What language does "sleeping policeman" come from?
"sleeping policeman" is a English word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list