regulationvsregulationsWhat's the difference?

Which to use

“regulation” and “regulations” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#3,781
“regulation” frequency rank
#3,019
“regulations” frequency rank
6800
confusion score

Side-by-Side Comparison

Feature regulation regulations
Definition The act of regulating or the condition of being regulated. plural of regulation

Where the eye mixes regulation and regulations

Muted = shared; highlighted = the visual trap. They share 10 letters in sequence. regulation runs 10 letters (CVCVCVCVVC) against regulations's 11 (CVCVCVCVVCC) - the length gap alone is often enough to separate them once you know to check it.

10 ch
regulation
11 ch
regulations

Why the eye confuses regulation with regulations

A purely visual mix-up. regulation (/ˌɹɛɡjʊˈleɪʃən/) and regulations (/ˌɹɛɡjəˈleɪʃənz/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 extra letter(s) - “regulation” sits inside “regulations”. Our composite confusion score for this pair is 6800, derived from the frequency rank of both members and their visual similarity.

regulation is recorded at frequency rank #3,781, classified as anoun, pronounced /ˌɹɛɡjʊˈleɪʃən/. regulations is at rank #3,019, tagged as anoun, pronounced /ˌɹɛɡjəˈleɪʃənz/.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 6800, this pair ranks #509,916 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of regulation vs regulations

Shared letters: aegilnortu. Private to "regulation": -. Private to "regulations": s.

"regulation" · 10 letters · shape CVCVCVCVVC  ·  "regulations" · 11 letters · shape CVCVCVCVVCC

Known mistypes of this pair

  • regulation ← ergulation · reggulation · regluation · regualtion · regulaiton · regulasion · regulatino · regulationn
  • regulations ← ergulations · reggulations · regluations · regualtions · regulaitons · regulatinos · regulationns · regulationss

Frequently Asked Questions

Do "regulation" and "regulations" mean the same thing in a sentence?
No. They are said differently (/ˌɹɛɡjʊˈleɪʃən/ versus /ˌɹɛɡjəˈleɪʃənz/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "regulation" or "regulations"?
"regulations" is the more common of the two: it sits at frequency rank #3,019 in our English list, against #3,781 for "regulation". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "regulation" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "regulations" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #509,916 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "regulation" and "regulations" also get mixed up with nearby pairs, the highest-scored neighbour is "refutation vs regulation". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #509,916 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list