soapvssupWhich spelling fits?

Which to use

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

#49,703
“soap” frequency rank
#25,150
“sup” frequency rank
74853
confusion score

Side-by-Side Comparison

Feature soap sup
Definition sabão abutre

Where the eye mixes soap and sup

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
soap
3 ch
sup

Why the eye confuses soap with sup

A purely visual mix-up. soap (/soʊp/) and sup (/sʊp/) 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 74853, derived from the frequency rank of both members and their visual similarity.

soap is recorded at frequency rank #49,703, classified as anoun, pronounced /soʊp/. sup is at rank #25,150, tagged as anoun, pronounced /sʊp/.

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 74853, this pair ranks #2,431 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of soap vs sup

Shared letters: ps. Private to "soap": ao. Private to "sup": u.

"soap" · 4 letters · shape CVVC  ·  "sup" · 3 letters · shape CVC

Known mistypes of this pair

  • soaposap · soapp · ssoap

Frequently Asked Questions

Is swapping "soap" for "sup" ever safe?
No. They are said differently (/soʊp/ versus /sʊp/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "soap" or "sup"?
"sup" is the more common of the two: it sits at frequency rank #25,150 in our Portuguese list, against #49,703 for "soap". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "soap" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sup" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #2,431 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "soap" and "sup" also get mixed up with nearby pairs, the highest-scored neighbour is "Sau vs soap". 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 #2,431 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