Which to use
“k” is a character and “kph” is a noun - they look or sound alike but fill different roles in a sentence.
- #1,310
- “k” frequency rank
- #47,147
- “kph” frequency rank
- 48457
- confusion score
Side-by-Side Comparison
| Feature | k | kph |
|---|---|---|
| Definition | The eleventh letter of the English alphabet, called kay and written in the Latin script. | Initialism of kilometre(s) per hour. |
Where the eye mixes k and kph
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Why the eye confuses k with kph
These two trip readers on the page rather than in the ear: k is /keɪ/ while kph is /ˌkeɪpiˈeɪt͡ʃ/. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 extra letter(s) - “k” sits inside “kph”, and the parts of speech differ too (character vs noun), which is usually the fastest check. Our composite confusion score for this pair is 48457, derived from the frequency rank of both members and their visual similarity.
k is recorded at frequency rank #1,310, classified as acharacter, pronounced /keɪ/. kph is at rank #47,147, tagged as anoun, pronounced /ˌkeɪpiˈeɪt͡ʃ/.
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 48457, this pair ranks #192,902 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of k vs kph
Shared letters: k. Private to "k": -. Private to "kph": hp.
"k" · 1 letters · shape C · "kph" · 3 letters · shape CCC
Frequently Asked Questions
Do "k" and "kph" mean the same thing in a sentence?
Frequency check: "k" vs "kph" - which ranks higher?
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 "kph" - compare definitions side by side with the headword page. Word entry
- This pair ranks #192,902 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "k" and "kph" also get mixed up with nearby pairs, the highest-scored neighbour is "Kop vs kph". Nearby pair
Confusion rank #192,902 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.