Which to use
“blue” is an adjective and “blur” is a verb - they look or sound alike but fill different roles in a sentence.
- #761
- “blue” frequency rank
- #13,867
- “blur” frequency rank
- 14628
- confusion score
Side-by-Side Comparison
| Feature | blue | blur |
|---|---|---|
| Definition | Of a blue hue. | To make indistinct or hazy, to obscure or dim. |
Where the eye mixes blue and blur
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Visual trap between blue and blur
These two trip readers on the page rather than in the ear: blue is /bluː/ while blur is /ˈblɜː/. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - e in “blue” becomes r in “blur”, and the parts of speech differ too (adjective vs verb), which is usually the fastest check. Our composite confusion score for this pair is 14628, derived from the frequency rank of both members and their visual similarity.
blue is recorded at frequency rank #761, classified as anadj, pronounced /bluː/. blur is at rank #13,867, tagged as averb, pronounced /ˈblɜː/.
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 14628, this pair ranks #468,882 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of blue vs blur
Shared letters: blu. Private to "blue": e. Private to "blur": r.
"blue" · 4 letters · shape CCVV · "blur" · 4 letters · shape CCVC
Known mistypes of this pair
Frequently Asked Questions
Do "blue" and "blur" mean the same thing in a sentence?
In ordinary English text, does "blue" or "blur" show up more?
What to do next
Eye-level mix-up between "blue" and "blur" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "blue" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "blur" - compare definitions side by side with the headword page. Word entry
- This pair ranks #468,882 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "blue" and "blur" also get mixed up with nearby pairs, the highest-scored neighbour is "blur vs Bui". 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 #468,882 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.