Which to use
“Kern” is a name and “key” is an adjective - they look or sound alike but fill different roles in a sentence.
- #36,023
- “Kern” frequency rank
- #18,240
- “key” frequency rank
- 54263
- confusion score
Side-by-Side Comparison
| Feature | Kern | key |
|---|---|---|
| Definition | Nom de famille français. | Dominant, principal. |
Letter map: Kern vs key
Shared letters muted; letters that set Kern and key apart highlighted. Shared run: 2.
Part-of-speech tell for Kern / key
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Kern is aname and keyanadjective. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 54263, derived from the frequency rank of both members and their visual similarity.
Kern is recorded at frequency rank #36,023, classified as aname. key is at rank #18,240, tagged as anadj, pronounced \kiː\.
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 54263, this pair ranks #135,199 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of Kern vs key
Shared letters: ek. Private to "Kern": nr. Private to "key": y.
"Kern" · 4 letters · shape CVCC · "key" · 3 letters · shape CVV
Known mistypes of this pair
- Kern ← ekrn · kenr · kernn · kerrn · kkern · kren
Frequently Asked Questions
Is swapping "Kern" for "key" ever safe?
Frequency check: "Kern" vs "key" - which ranks higher?
After this comparison
Pair "Kern" vs "key" is on the table, pick a follow-up below.
- Full dictionary entry for "Kern" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "key" - compare definitions side by side with the headword page. Word entry
- This pair ranks #135,199 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "Kern" and "key" also get mixed up with nearby pairs, the highest-scored neighbour is "Kehl vs Kern". 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 #135,199 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.