regulationvsregulatorWhat's the difference?

Which to use

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

#3,781
“regulation” frequency rank
#12,668
“regulator” frequency rank
16449
confusion score

Side-by-Side Comparison

Feature regulation regulator
Definition The act of regulating or the condition of being regulated. A device that controls or limits something.

Where the eye mixes regulation and regulator

Muted = shared; highlighted = the visual trap. They share 8 letters in sequence. regulation runs 10 letters (CVCVCVCVVC) against regulator's 9 (CVCVCVCVC) - the length gap alone is often enough to separate them once you know to check it.

10 ch
regulation
9 ch
regulator

Look-alike desk: regulation vs regulator

A purely visual mix-up. regulation (/ˌɹɛɡjʊˈleɪʃən/) and regulator (/ˈɹɛɡ.jʊ.leɪ.tə/) 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 letter(s) in length. Our composite confusion score for this pair is 16449, 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/. regulator is at rank #12,668, tagged as anoun, pronounced /ˈɹɛɡ.jʊ.leɪ.tə/.

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 16449, this pair ranks #457,678 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of regulation vs regulator

Shared letters: aeglortu. Private to "regulation": in. Private to "regulator": -.

"regulation" · 10 letters · shape CVCVCVCVVC  ·  "regulator" · 9 letters · shape CVCVCVCVC

Known mistypes of this pair

  • regulation ← ergulation · reggulation · regluation · regualtion · regulaiton · regulasion · regulatino · regulationn
  • regulator ← ergulator · reggulator · regluator · regualtor · regulaotr · regulatorr · regulatro · regulattor

Frequently Asked Questions

Is swapping "regulation" for "regulator" ever safe?
No. They are said differently (/ˌɹɛɡjʊˈleɪʃən/ versus /ˈɹɛɡ.jʊ.leɪ.tə/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary English text, does "regulation" or "regulator" show up more?
"regulation" is the more common of the two: it sits at frequency rank #3,781 in our English list, against #12,668 for "regulator". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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 "regulator" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #457,678 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "regulation" and "regulator" 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 #457,678 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