senovssonsWhich spelling fits?

Which to use

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

#48,110
“seno” frequency rank
#4,957
“sons” frequency rank
53067
confusion score

Side-by-Side Comparison

Feature seno sons
Definition em relação a um dos ângulos agudos de um triângulo retângulo, é o resultado da divisão do valor do cateto oposto a este ângulo pelo valor da hipotenusa forma plural de som:

Where the eye mixes seno and sons

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. seno (CVCV) and sons (CVCC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

4 ch
seno
4 ch
sons

Why the eye confuses seno with sons

A purely visual mix-up. seno (/ˈsenu/) and sons (/ˈsõs/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 53067, derived from the frequency rank of both members and their visual similarity.

seno is recorded at frequency rank #48,110, classified as anoun, pronounced /ˈsenu/. sons is at rank #4,957, tagged as anoun, pronounced /ˈsõs/.

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 53067, this pair ranks #12,307 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of seno vs sons

Shared letters: nos. Private to "seno": e. Private to "sons": -.

"seno" · 4 letters · shape CVCV  ·  "sons" · 4 letters · shape CVCC

Known mistypes of this pair

  • seno ← esno · senno · seon · sneo · sseno
  • sons ← osns · snos · sonns · sonss · sosn · ssons

Frequently Asked Questions

Is swapping "seno" for "sons" ever safe?
No. They are said differently (/ˈsenu/ versus /ˈsõs/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "seno" or "sons"?
"sons" is the more common of the two: it sits at frequency rank #4,957 in our Portuguese list, against #48,110 for "seno". 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 "seno" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sons" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #12,307 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "seno" and "sons" also get mixed up with nearby pairs, the highest-scored neighbour is "seno vs sueño". 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 #12,307 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