Which to use
“kai” and “key” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #10,070
- “kai” frequency rank
- #788
- “key” frequency rank
- 10858
- confusion score
Side-by-Side Comparison
| Feature | kai | key |
|---|---|---|
| Definition | Food. | An object designed to open and close a lock. |
Where the eye mixes kai and key
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Visual trap between kai and key
A purely visual mix-up. kai (/kaɪ̯/) and key (/kiː/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 10858, derived from the frequency rank of both members and their visual similarity.
kai is recorded at frequency rank #10,070, classified as anoun, pronounced /kaɪ̯/. key is at rank #788, 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 10858, this pair ranks #490,161 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of kai vs key
Shared letters: k. Private to "kai": ai. Private to "key": ey.
"kai" · 3 letters · shape CVV · "key" · 3 letters · shape CVV
Frequently Asked Questions
Do "kai" and "key" mean the same thing in a sentence?
Frequency check: "kai" vs "key" - which ranks higher?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "kai" 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 #490,161 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "kai" and "key" also get mixed up with nearby pairs, the highest-scored neighbour is "kai vs Kop". Nearby pair
Confusion rank #490,161 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.