Which to use
“k” is a character and “key” is a noun - they look or sound alike but fill different roles in a sentence.
- #1,381
- “k” frequency rank
- #18,292
- “key” frequency rank
- 19673
- confusion score
Side-by-Side Comparison
| Feature | k | key |
|---|---|---|
| Definition | Undécima letra del alfabeto español y octava consonante. Su nombre es ka. | Llave. |
Where the eye mixes k and key
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Look-alike desk: k vs key
These two trip readers on the page rather than in the ear: k is [ˈka] while key is [kiː]. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 extra letter(s) - “k” sits inside “key”, and the parts of speech differ too (character vs noun), which is usually the fastest check. Our composite confusion score for this pair is 19673, derived from the frequency rank of both members and their visual similarity.
k is recorded at frequency rank #1,381, classified as acharacter, pronounced [ˈka]. key is at rank #18,292, tagged as anoun, 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 19673, this pair ranks #262,712 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of k vs key
Shared letters: k. Private to "k": -. Private to "key": ey.
"k" · 1 letters · shape C · "key" · 3 letters · shape CVV
Frequently Asked Questions
Do "k" and "key" mean the same thing in a sentence?
In ordinary Spanish text, does "k" or "key" show up more?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "k" 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 #262,712 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "k" and "key" also get mixed up with nearby pairs, the highest-scored neighbour is "keen vs key". Nearby pair
Confusion rank #262,712 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.