Which to use
“cac” and “clack” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #33,969
- “cac” frequency rank
- #46,381
- “clack” frequency rank
- 80350
- confusion score
Side-by-Side Comparison
| Feature | cac | clack |
|---|---|---|
| Definition | A white (Caucasian) person. | An abrupt, sharp sound, especially one made by two hard objects colliding repetitively; a sound midway between a click and a clunk. |
Where the eye mixes cac and clack
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. cac runs 3 letters (CVC) against clack's 5 (CCVCC) - the length gap alone is often enough to separate them once you know to check it.
Look-alike desk: cac vs clack
A purely visual mix-up. cac (/kæk/) and clack (/klæk/) 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 2 letter(s) in length. Our composite confusion score for this pair is 80350, derived from the frequency rank of both members and their visual similarity.
cac is recorded at frequency rank #33,969, classified as anoun, pronounced /kæk/. clack is at rank #46,381, tagged as anoun, pronounced /klæk/.
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 80350, this pair ranks #20,001 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of cac vs clack
Shared letters: ac. Private to "cac": -. Private to "clack": kl.
"cac" · 3 letters · shape CVC · "clack" · 5 letters · shape CCVCC
Known mistypes of this pair
- clack ← calck · cclack · clacck · clackk · clakc · clcak · cllack · lcack
Frequently Asked Questions
Is swapping "cac" for "clack" ever safe?
In ordinary English text, does "cac" or "clack" show up more?
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 "cac" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "clack" - compare definitions side by side with the headword page. Word entry
- This pair ranks #20,001 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "cac" and "clack" also get mixed up with nearby pairs, the highest-scored neighbour is "clack vs clink". 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 #20,001 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.