kellvskoolWhich spelling fits?

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

Which to use

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

#42,221
“kell” frequency rank
#20,684
“kool” frequency rank
62905
confusion score

Side-by-Side Comparison

Feature kell kool
Definition The caul. To look; to pay attention to with one’s eyes.

Letter map: kell vs kool

Shared letters muted; letters that set kell and kool apart highlighted. Shared run: 2.

4 ch
kell
4 ch
kool

Part-of-speech tell for kell / kool

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: kell is anoun and koolaverb. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 62905, derived from the frequency rank of both members and their visual similarity.

kell is recorded at frequency rank #42,221, classified as anoun, pronounced /kɛl/. kool is at rank #20,684, tagged as averb.

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 62905, this pair ranks #85,931 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of kell vs kool

Shared letters: kl. Private to "kell": e. Private to "kool": o.

"kell" · 4 letters · shape CVCC  ·  "kool" · 4 letters · shape CVVC

Known mistypes of this pair

  • kellekll · kkell · klel
  • koolkkool · kol · kolo · kooll · okol

Frequently Asked Questions

Is swapping "kell" for "kool" ever safe?
No - they are not even the same part of speech. "kell" is a noun and "kool" a verb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "kell" or "kool"?
"kool" is the more common of the two: it sits at frequency rank #20,684 in our English list, against #42,221 for "kell". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

You've compared "kell" and "kool". Here's where to go from here.

  • Full dictionary entry for "kell" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "kool" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #85,931 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "kell" and "kool" also get mixed up with nearby pairs, the highest-scored neighbour is "kell vs Kroll". 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 #85,931 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