coinvscoxWhich spelling fits?

Which to use

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

#5,201
“coin” frequency rank
#7,783
“cox” frequency rank
12984
confusion score

Side-by-Side Comparison

Feature coin cox
Definition A piece of currency, usually metallic and in the shape of a disc, but sometimes polygonal, or with a hole in the middle. A coxswain of a boat, especially of a racing crew.

Where the eye mixes coin and cox

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

4 ch
coin
3 ch
cox

Why the eye confuses coin with cox

A purely visual mix-up. coin (/kɔɪn/) and cox (/kɒks/) 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 12984, derived from the frequency rank of both members and their visual similarity.

coin is recorded at frequency rank #5,201, classified as anoun, pronounced /kɔɪn/. cox is at rank #7,783, tagged as anoun, pronounced /kɒks/.

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 12984, this pair ranks #478,388 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of coin vs cox

Shared letters: co. Private to "coin": in. Private to "cox": x.

"coin" · 4 letters · shape CVVC  ·  "cox" · 3 letters · shape CVC

Known mistypes of this pair

  • coinccoin · cion · coinn · coni · ocin

Frequently Asked Questions

Is swapping "coin" for "cox" ever safe?
No. They are said differently (/kɔɪn/ versus /kɒks/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "coin" or "cox"?
"coin" is the more common of the two: it sits at frequency rank #5,201 in our English list, against #7,783 for "cox". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "coin" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "cox" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #478,388 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "coin" and "cox" also get mixed up with nearby pairs, the highest-scored neighbour is "CGT vs cox". 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 #478,388 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