Which to use
“rad” is an adjective and “ran” is a verb - they look or sound alike but fill different roles in a sentence.
- #15,039
- “rad” frequency rank
- #1,437
- “ran” frequency rank
- 16476
- confusion score
Side-by-Side Comparison
| Feature | rad | ran |
|---|---|---|
| Definition | Clipping of radical (“excellent”). | simple past of run |
Where the eye mixes rad and ran
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses rad with ran
These two trip readers on the page rather than in the ear: rad is /ɹæd/ while ran is /ɹæn/. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - d in “rad” becomes n in “ran”, and the parts of speech differ too (adjective vs verb), which is usually the fastest check. Our composite confusion score for this pair is 16476, derived from the frequency rank of both members and their visual similarity.
rad is recorded at frequency rank #15,039, classified as anadj, pronounced /ɹæd/. ran is at rank #1,437, tagged as averb, pronounced /ɹæn/.
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 16476, this pair ranks #457,502 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of rad vs ran
Shared letters: ar. Private to "rad": d. Private to "ran": n.
"rad" · 3 letters · shape CVC · "ran" · 3 letters · shape CVC
Frequently Asked Questions
Is swapping "rad" for "ran" ever safe?
Which is more common, "rad" or "ran"?
What to do next
Eye-level mix-up between "rad" and "ran" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "rad" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "ran" - compare definitions side by side with the headword page. Word entry
- This pair ranks #457,502 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "rad" and "ran" also get mixed up with nearby pairs, the highest-scored neighbour is "rad vs Rua". Nearby pair
Confusion rank #457,502 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.