Which to use
“K9” and “ko” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #36,625
- “K9” frequency rank
- #10,717
- “ko” frequency rank
- 47342
- confusion score
Side-by-Side Comparison
| Feature | K9 | ko |
|---|---|---|
| Definition | A trained police dog. | A local shape to which the ko rule applies; a ko shape. |
Where the spellings diverge
Shared letters are muted; the letters that actually set K9 and ko apart are highlighted. They share 1 letter in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
A purely visual mix-up. K9 (/ˈkeɪnaɪn/) and ko (/ˈkəʊ/) 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 a single letter - 9 in “K9” becomes o in “ko”. Our composite confusion score for this pair is 47342, derived from the frequency rank of both members and their visual similarity.
K9 is recorded at frequency rank #36,625, classified as anoun, pronounced /ˈkeɪnaɪn/. ko is at rank #10,717, tagged as anoun, pronounced /ˈkəʊ/.
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 47342, this pair ranks #203,316 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of K9 vs ko
Shared letters: k. Private to "K9": -. Private to "ko": o.
"K9" · 1 letters · shape C · "ko" · 2 letters · shape CV
Frequency comparison
Frequently Asked Questions
Can "K9" and "ko" be used interchangeably?
Which is more common, "K9" or "ko"?
Remembering K9 vs ko
The fastest way to pick the right one every time.
- Read both glosses above and match the meaning you intend, only context separates this pair.
- See each word in full, definition, IPA, etymology and its other confusables. Full “K9” entry
- Browse more pairs most likely to be confused. Most confusable