Which to use
“grade” and “gray” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #7,030
- “grade” frequency rank
- #10,365
- “gray” frequency rank
- 17395
- confusion score
Side-by-Side Comparison
| Feature | grade | gray |
|---|---|---|
| Definition | armação para vedar | unidade no Sistema Internacional de medidas, representado por Gy, que representa a quantidade de energia de radiação ionizante absorvida (ou dose) por unidade de massa, e é definido como a quantidade que deposita 1 joule (J) de energia por quilograma (kg) do meio absorvedor, sendo 1 Gy = 1 J/kg |
Where the eye mixes grade and gray
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Why the eye confuses grade with gray
A purely visual mix-up. grade (/ˈɡɾa.dɨ/) and gray (/'greɪ/) 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 1 letter(s) in length. Our composite confusion score for this pair is 17395, derived from the frequency rank of both members and their visual similarity.
grade is recorded at frequency rank #7,030, classified as anoun, pronounced /ˈɡɾa.dɨ/. gray is at rank #10,365, tagged as anoun, pronounced /'greɪ/.
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 17395, this pair ranks #53,851 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of grade vs gray
Shared letters: agr. Private to "grade": de. Private to "gray": y.
"grade" · 5 letters · shape CCVCV · "gray" · 4 letters · shape CCVV
Known mistypes of this pair
Frequently Asked Questions
Do "grade" and "gray" mean the same thing in a sentence?
Which is more common, "grade" or "gray"?
Useful next steps
Eye-level mix-up between "grade" and "gray" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "grade" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "gray" - compare definitions side by side with the headword page. Word entry
- This pair ranks #53,851 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "grade" and "gray" also get mixed up with nearby pairs, the highest-scored neighbour is "gray vs grip". 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 #53,851 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.