Which to use
“sky” is a noun and “su” is an adjective - they look or sound alike but fill different roles in a sentence.
- #7,084
- “sky” frequency rank
- #6,713
- “su” frequency rank
- 13797
- confusion score
Side-by-Side Comparison
| Feature | sky | su |
|---|---|---|
| Definition | céu | dele |
Letter map: sky vs su
Shared letters muted; letters that set sky and su apart highlighted. Shared run: 1.
Part-of-speech tell for sky / su
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: sky is anoun and suanadjective. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 13797, derived from the frequency rank of both members and their visual similarity.
sky is recorded at frequency rank #7,084, classified as anoun, pronounced /skaɪ/. su is at rank #6,713, tagged as anadj.
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 13797, this pair ranks #58,438 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of sky vs su
Shared letters: s. Private to "sky": ky. Private to "su": u.
"sky" · 3 letters · shape CCV · "su" · 2 letters · shape CV
Frequently Asked Questions
Do "sky" and "su" mean the same thing in a sentence?
Frequency check: "sky" vs "su" - which ranks higher?
Useful next steps
You've compared "sky" and "su". Here's where to go from here.
- Full dictionary entry for "sky" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "su" - compare definitions side by side with the headword page. Word entry
- This pair ranks #58,438 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "sky" and "su" also get mixed up with nearby pairs, the highest-scored neighbour is "Sau vs sky". Nearby pair
Confusion rank #58,438 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.