Which to use
“radar” is a noun and “roar” is a verb - they look or sound alike but fill different roles in a sentence.
- #5,160
- “radar” frequency rank
- #11,282
- “roar” frequency rank
- 16442
- confusion score
Side-by-Side Comparison
| Feature | radar | roar |
|---|---|---|
| Definition | In full primary radar: a method of detecting a distant object and determining its position, velocity, or other characteristics by analysing radio waves (usually microwaves) which are sent towards the object and which reflect off its surfaces; also, the field of study of this method. | To make a loud, deep cry, especially from pain, anger, or other strong emotion. |
Where the eye mixes radar and roar
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Visual trap between radar and roar
These two trip readers on the page rather than in the ear: radar is /ˈɹeɪdɑː/ while roar is /ɹɔː/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 16442, derived from the frequency rank of both members and their visual similarity.
radar is recorded at frequency rank #5,160, classified as anoun, pronounced /ˈɹeɪdɑː/. roar is at rank #11,282, tagged as averb, pronounced /ɹɔː/.
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 16442, this pair ranks #457,713 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of radar vs roar
Shared letters: ar. Private to "radar": d. Private to "roar": o.
"radar" · 5 letters · shape CVCVC · "roar" · 4 letters · shape CVVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "radar" for "roar" ever safe?
Which is more common, "radar" or "roar"?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "radar" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "roar" - compare definitions side by side with the headword page. Word entry
- This pair ranks #457,713 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "radar" and "roar" also get mixed up with nearby pairs, the highest-scored neighbour is "roar vs Rua". 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 #457,713 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.