SudanvsSundayWhich spelling fits?

Which to use

“Sudan” and “Sunday” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#49,197
“Sudan” frequency rank
#21,311
“Sunday” frequency rank
70508
confusion score

Side-by-Side Comparison

Feature Sudan Sunday
Definition Sudão domingo, primeiro dia da semana, depois do sábado e antes da segunda-feira

Where the eye mixes Sudan and Sunday

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. Sudan runs 5 letters (CVCVC) against Sunday's 6 (CVCCVV) - the length gap alone is often enough to separate them once you know to check it.

5 ch
Sudan
6 ch
Sunday

Look-alike desk: Sudan vs Sunday

A purely visual mix-up. Sudan (/su.'dæn/) and Sunday (/ˈsʌndeɪ/, /ˈsʌndi/) 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 70508, derived from the frequency rank of both members and their visual similarity.

Sudan is recorded at frequency rank #49,197, classified as anoun, pronounced /su.'dæn/. Sunday is at rank #21,311, tagged as anoun, pronounced /ˈsʌndeɪ/, /ˈsʌndi/.

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 70508, this pair ranks #3,602 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of Sudan vs Sunday

Shared letters: adnsu. Private to "Sudan": -. Private to "Sunday": y.

"Sudan" · 5 letters · shape CVCVC  ·  "Sunday" · 6 letters · shape CVCCVV

Known mistypes of this pair

  • Sudan ← sduan · ssudan · suadn · sudann · suddan · sudna · usdan
  • Sunday ← snuday · ssunday · sudnay · sunady · sundayy · sundday · sundya · sunnday

Frequently Asked Questions

Do "Sudan" and "Sunday" mean the same thing in a sentence?
No. They are said differently (/su.'dæn/ versus /ˈsʌndeɪ/, /ˈsʌndi/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "Sudan" vs "Sunday" - which ranks higher?
"Sunday" is the more common of the two: it sits at frequency rank #21,311 in our Portuguese list, against #49,197 for "Sudan". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "Sudan" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Sunday" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #3,602 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "Sudan" and "Sunday" also get mixed up with nearby pairs, the highest-scored neighbour is "Sudan vs sundae". 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 #3,602 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list