key vs ky, What's the Difference?

Which to use

“key” and “ky” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#18,240
“key” frequency rank: #49,758
“ky” frequency rank: 67998
confusion score

Side-by-Side Comparison

Feature	key	ky
Definition	Dominant, principal.	Ce, ce ... -ci.

Where the eye mixes key and ky

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

3 ch

key

2 ch

Why the eye confuses key with ky

A purely visual mix-up. key (\kiː\) and ky (\ky\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 67998, derived from the frequency rank of both members and their visual similarity.

key is recorded at frequency rank #18,240, classified as anadj, pronounced \kiː\. ky is at rank #49,758, tagged as anadj, pronounced \ky\.

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 67998, this pair ranks #61,029 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of key vs ky

Shared letters: ky. Private to "key": e. Private to "ky": -.

"key" · 3 letters · shape CVV · "ky" · 2 letters · shape CV

Frequently Asked Questions

Do "key" and "ky" mean the same thing in a sentence?

No. They are said differently (\kiː\ versus \ky\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.

In ordinary French text, does "key" or "ky" show up more?

"key" is the more common of the two: it sits at frequency rank #18,240 in our French list, against #49,758 for "ky". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Eye-level mix-up between "key" and "ky" is sorted above. Next: full entries or other pairs that share a letter shape.

Full dictionary entry for "key" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "ky" - compare definitions side by side with the headword page. Word entry
This pair ranks #61,029 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
"key" and "ky" also get mixed up with nearby pairs, the highest-scored neighbour is "kgs vs ky". Nearby pair

Confusion rank #61,029 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.