Which to use
“knoll” is a noun and “kool” is a verb - they look or sound alike but fill different roles in a sentence.
- #32,887
- “knoll” frequency rank
- #20,684
- “kool” frequency rank
- 53571
- confusion score
Side-by-Side Comparison
| Feature | knoll | kool |
|---|---|---|
| Definition | A small mound or rounded hill. | To look; to pay attention to with one’s eyes. |
Letter map: knoll vs kool
Shared letters muted; letters that set knoll and kool apart highlighted. Shared run: 3. knoll runs 5 letters (CCVCC) against kool's 4 (CVVC) - the length gap alone is often enough to separate them once you know to check it.
Grammar separator: knoll vs kool
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: knoll is anoun and koolaverb. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 53571, derived from the frequency rank of both members and their visual similarity.
knoll is recorded at frequency rank #32,887, classified as anoun, pronounced /nəʊl/. 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 53571, this pair ranks #147,905 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of knoll vs kool
Shared letters: klo. Private to "knoll": n. Private to "kool": -.
"knoll" · 5 letters · shape CCVCC · "kool" · 4 letters · shape CVVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "knoll" for "kool" ever safe?
Which is more common, "knoll" or "kool"?
What to do next
You've compared "knoll" and "kool". Here's where to go from here.
- Full dictionary entry for "knoll" 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 #147,905 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "knoll" and "kool" also get mixed up with nearby pairs, the highest-scored neighbour is "kno vs knoll". 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 #147,905 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.