servssouWhat's the difference?

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

Which to use

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

#30
“ser” frequency rank
#106
“sou” frequency rank
136
confusion score

Side-by-Side Comparison

Feature ser sou
Definition existir, aquilo que supõe-se existir primeira pessoa do singular do presente do indicativo do verbo ser

Where the eye mixes ser and sou

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
ser
3 ch
sou

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: ser is /ˈseɾ/ while sou is /ˈsow/, /ˈso/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 136, derived from the frequency rank of both members and their visual similarity.

ser is recorded at frequency rank #30, classified as anoun, pronounced /ˈseɾ/. 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 136, this pair ranks #75,521 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of ser vs sou

Shared letters: s. Private to "ser": er. Private to "sou": ou.

"ser" · 3 letters · shape CVC  ·  "sou" · 3 letters · shape CVV

Frequently Asked Questions

Can "ser" and "sou" be used interchangeably?
No - they are not even the same part of speech. "ser" is a noun and "sou" a verb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "ser" or "sou"?
"ser" is the more common of the two: it sits at frequency rank #30 in our Portuguese list, against #106 for "sou". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

You've compared "ser" and "sou". Here's where to go from here.

  • Full dictionary entry for "ser" 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 #75,521 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "ser" and "sou" also get mixed up with nearby pairs, the highest-scored neighbour is "soap vs sou". Nearby pair

PlainSpell is a reference corpus, not spelling advice. Verify unusual forms in context.

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

Source: FrequencyWords open word-frequency list