Which to use
“regulator” is a noun and “regulatory” is an adjective - they look or sound alike but fill different roles in a sentence.
- #12,668
- “regulator” frequency rank
- #4,887
- “regulatory” frequency rank
- 17555
- confusion score
Side-by-Side Comparison
| Feature | regulator | regulatory |
|---|---|---|
| Definition | A device that controls or limits something. | Of or pertaining to regulation. |
Where the eye mixes regulator and regulatory
Muted = shared; highlighted = the visual trap. They share 9 letters in sequence. regulator runs 9 letters (CVCVCVCVC) against regulatory's 10 (CVCVCVCVCV) - the length gap alone is often enough to separate them once you know to check it.
Look-alike desk: regulator vs regulatory
These two trip readers on the page rather than in the ear: regulator is /ˈɹɛɡ.jʊ.leɪ.tə/ while regulatory is /ˈɹɛɡ.jʊ.lə.t(ɔː.)ɹi/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 extra letter(s) - “regulator” sits inside “regulatory”, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 17555, derived from the frequency rank of both members and their visual similarity.
regulator is recorded at frequency rank #12,668, classified as anoun, pronounced /ˈɹɛɡ.jʊ.leɪ.tə/. regulatory is at rank #4,887, tagged as anadj, pronounced /ˈɹɛɡ.jʊ.lə.t(ɔː.)ɹi/.
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 17555, this pair ranks #450,639 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of regulator vs regulatory
Shared letters: aeglortu. Private to "regulator": -. Private to "regulatory": y.
"regulator" · 9 letters · shape CVCVCVCVC · "regulatory" · 10 letters · shape CVCVCVCVCV
Known mistypes of this pair
- regulator ← ergulator · reggulator · regluator · regualtor · regulaotr · regulatorr · regulatro · regulattor
- regulatory ← ergulatory · reggulatory · regluatory · regualtory · regulaotry · regulatorry · regulatoryy · regulatoyr
Frequently Asked Questions
Can "regulator" and "regulatory" be used interchangeably?
Which is more common, "regulator" or "regulatory"?
Useful next steps
Eye-level mix-up between "regulator" and "regulatory" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "regulator" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "regulatory" - compare definitions side by side with the headword page. Word entry
- This pair ranks #450,639 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "regulator" and "regulatory" also get mixed up with nearby pairs, the highest-scored neighbour is "regulates vs regulator". 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 #450,639 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.