solovssouWhich spelling fits?

Quick tell: solo is a noun, sou is a verb, so they fill different roles in a sentence.

Which to use

“solo” is a noun and “sou” is a verb - they look or sound alike but fill different roles in a sentence.

#1,451
“solo” frequency rank
#106
“sou” frequency rank
1557
confusion score

Side-by-Side Comparison

Feature solo sou
Definition terra primeira pessoa do singular do presente do indicativo do verbo ser

Where the eye mixes solo and sou

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

4 ch
solo
3 ch
sou

Visual trap between solo and sou

These two trip readers on the page rather than in the ear: solo is /ˈsɔ.lu/ while sou is /ˈsow/, /ˈso/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 1557, derived from the frequency rank of both members and their visual similarity.

solo is recorded at frequency rank #1,451, classified as anoun, pronounced /ˈsɔ.lu/. sou is at rank #106, tagged as averb, pronounced /ˈsow/, /ˈso/.

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 1557, this pair ranks #73,990 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of solo vs sou

Shared letters: os. Private to "solo": l. Private to "sou": u.

"solo" · 4 letters · shape CVCV  ·  "sou" · 3 letters · shape CVV

Known mistypes of this pair

  • solooslo · sloo · sollo · sool · ssolo

Frequently Asked Questions

Do "solo" and "sou" mean the same thing in a sentence?
No - they are not even the same part of speech. "solo" is a noun and "sou" a verb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "solo" or "sou"?
"sou" is the more common of the two: it sits at frequency rank #106 in our Portuguese list, against #1,451 for "solo". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

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 "solo" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sou" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #73,990 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "solo" and "sou" also get mixed up with nearby pairs, the highest-scored neighbour is "soap vs solo". 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 #73,990 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