inquisitionvsinquisitorWhich spelling fits?

Which to use

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

#18,348
“inquisition” frequency rank
#34,938
“inquisitor” frequency rank
53286
confusion score

Side-by-Side Comparison

Feature inquisition inquisitor
Definition An inquiry or investigation into the truth of some matter. A person who inquires, especially searchingly or ruthlessly.

Where the eye mixes inquisition and inquisitor

Muted = shared; highlighted = the visual trap. They share 9 letters in sequence. inquisition runs 11 letters (VCCVVCVCVVC) against inquisitor's 10 (VCCVVCVCVC) - the length gap alone is often enough to separate them once you know to check it.

11 ch
inquisition
10 ch
inquisitor

Visual trap between inquisition and inquisitor

A purely visual mix-up. inquisition (/ˌɪŋkwɪˈzɪʃən/) and inquisitor (/ɪnˈkwɪzətəɹ/) 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 53286, derived from the frequency rank of both members and their visual similarity.

inquisition is recorded at frequency rank #18,348, classified as anoun, pronounced /ˌɪŋkwɪˈzɪʃən/. inquisitor is at rank #34,938, tagged as anoun, pronounced /ɪnˈkwɪzətəɹ/.

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 53286, this pair ranks #150,194 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of inquisition vs inquisitor

Shared letters: inoqstu. Private to "inquisition": -. Private to "inquisitor": r.

"inquisition" · 11 letters · shape VCCVVCVCVVC  ·  "inquisitor" · 10 letters · shape VCCVVCVCVC

Known mistypes of this pair

  • inquisition ← innquisition · inqiusition · inqquisition · inquiistion · inquisiiton · inquisision · inquisitino · inquisitionn
  • inquisitor ← innquisitor · inqiusitor · inqquisitor · inquiistor · inquisiotr · inquisitorr · inquisitro · inquisittor

Frequently Asked Questions

Is swapping "inquisition" for "inquisitor" ever safe?
No. They are said differently (/ˌɪŋkwɪˈzɪʃən/ versus /ɪnˈkwɪzətəɹ/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "inquisition" or "inquisitor"?
"inquisition" is the more common of the two: it sits at frequency rank #18,348 in our English list, against #34,938 for "inquisitor". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "inquisition" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "inquisitor" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #150,194 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "inquisition" and "inquisitor" also get mixed up with nearby pairs, the highest-scored neighbour is "inquisition vs inquisitive". 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 #150,194 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