regulatesvsregulatorWhich spelling fits?

Quick tell: regulates is a verb, regulator is a noun, so they fill different roles in a sentence.

Which to use

“regulates” is a verb and “regulator” is a noun - they look or sound alike but fill different roles in a sentence.

#19,435
“regulates” frequency rank
#12,668
“regulator” frequency rank
32103
confusion score

Side-by-Side Comparison

Feature regulates regulator
Definition third-person singular simple present indicative of regulate A device that controls or limits something.

Letter map: regulates vs regulator

Shared letters muted; letters that set regulates and regulator apart highlighted. Shared run: 7.

9 ch
regulates
9 ch
regulator

Grammar separator: regulates vs regulator

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: regulates is averb and regulatoranoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 32103, derived from the frequency rank of both members and their visual similarity.

regulates is recorded at frequency rank #19,435, classified as averb. 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 32103, this pair ranks #340,600 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of regulates vs regulator

Shared letters: aeglrtu. Private to "regulates": s. Private to "regulator": o.

"regulates" · 9 letters · shape CVCVCVCVC  ·  "regulator" · 9 letters · shape CVCVCVCVC

Known mistypes of this pair

  • regulatesergulates · reggulates · regluates · regualtes · regulaets · regulatess · regulatse · regulattes
  • regulatorergulator · reggulator · regluator · regualtor · regulaotr · regulatorr · regulatro · regulattor

Frequently Asked Questions

Can "regulates" and "regulator" be used interchangeably?
No - they are not even the same part of speech. "regulates" is a verb and "regulator" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "regulates" vs "regulator" - which ranks higher?
"regulator" is the more common of the two: it sits at frequency rank #12,668 in our English list, against #19,435 for "regulates". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Done with this confusable. These links stay specific to "regulates" and "regulator".

  • Full dictionary entry for "regulates" 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 #340,600 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "regulates" and "regulator" also get mixed up with nearby pairs, the highest-scored neighbour is "regulate vs regulates". 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 #340,600 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