keysvskyuWhich spelling fits?

Which to use

“keys” and “kyu” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#3,699
“keys” frequency rank
#35,806
“kyu” frequency rank
39505
confusion score

Side-by-Side Comparison

Feature keys kyu
Definition plural of key A grade or rank in various Japanese activities such as martial arts, flower arranging, and the game of go.

Letter map: keys vs kyu

Shared letters muted; letters that set keys and kyu apart highlighted. Shared run: 2. keys runs 4 letters (CVVC) against kyu's 3 (CVV) - the length gap alone is often enough to separate them once you know to check it.

4 ch
keys
3 ch
kyu

Pair insight - keys / kyu

keys and kyu are indexed as a confusable English pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 39505, derived from the frequency rank of both members and their visual similarity.

keys is recorded at frequency rank #3,699, classified as anoun, pronounced /kiːz/. kyu is at rank #35,806, tagged as anoun.

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 39505, this pair ranks #276,054 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of keys vs kyu

Shared letters: ky. Private to "keys": es. Private to "kyu": u.

"keys" · 4 letters · shape CVVC  ·  "kyu" · 3 letters · shape CVV

Known mistypes of this pair

  • keys ← ekys · kesy · keyss · keyys · kkeys · kyes

Frequently Asked Questions

Do "keys" and "kyu" mean the same thing in a sentence?
No. They differ by 1 letter(s) in length, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Frequency check: "keys" vs "kyu" - which ranks higher?
"keys" is the more common of the two: it sits at frequency rank #3,699 in our English list, against #35,806 for "kyu". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pair "keys" vs "kyu" is on the table, pick a follow-up below.

  • Full dictionary entry for "keys" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "kyu" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #276,054 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "keys" and "kyu" also get mixed up with nearby pairs, the highest-scored neighbour is "Kop vs kyu". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #276,054 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list