Which to use
“cause” is a noun and “close” is a verb - they look or sound alike but fill different roles in a sentence.
- #441
- “cause” frequency rank
- #431
- “close” frequency rank
- 872
- confusion score
Side-by-Side Comparison
| Feature | cause | close |
|---|---|---|
| Definition | The source of, or reason for, an event or action; that which produces or effects a result. | To remove or block an opening, gap or passage through. |
Where the eye mixes cause and close
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Why the eye confuses cause with close
These two trip readers on the page rather than in the ear: cause is /kɔːz/ while close is /kləʊz/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 872, derived from the frequency rank of both members and their visual similarity.
cause is recorded at frequency rank #441, classified as anoun, pronounced /kɔːz/. close is at rank #431, tagged as averb, pronounced /kləʊz/.
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 872, this pair ranks #528,597 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of cause vs close
Shared letters: ces. Private to "cause": au. Private to "close": lo.
"cause" · 5 letters · shape CVVCV · "close" · 5 letters · shape CCVCV
Known mistypes of this pair
Frequently Asked Questions
Is swapping "cause" for "close" ever safe?
In ordinary English text, does "cause" or "close" show up more?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "cause" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "close" - compare definitions side by side with the headword page. Word entry
- This pair ranks #528,597 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "cause" and "close" also get mixed up with nearby pairs, the highest-scored neighbour is "Clo vs close". 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 #528,597 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.