sumvssuyoConfusable pair

Quick tell: sum is a noun, suyo is a pronoun, so they fill different roles in a sentence.

Which to use

“sum” is a noun and “suyo” is a pronoun - they look or sound alike but fill different roles in a sentence.

#27,789
“sum” frequency rank
#2,426
“suyo” frequency rank
30215
confusion score

Side-by-Side Comparison

Feature sum suyo
Definition Suma, adición. Pronombre posesivo de tercera persona en género masculino y femenino y ambos números singular y plural.

Where the eye mixes sum and suyo

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

3 ch
sum
4 ch
suyo

Why the eye confuses sum with suyo

These two trip readers on the page rather than in the ear: sum is [sʌm] while suyo is [ˈsuʝo]. 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 pronoun), which is usually the fastest check. Our composite confusion score for this pair is 30215, derived from the frequency rank of both members and their visual similarity.

sum is recorded at frequency rank #27,789, classified as anoun, pronounced [sʌm]. suyo is at rank #2,426, tagged as apron, pronounced [ˈsuʝo].

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 30215, this pair ranks #213,090 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of sum vs suyo

Shared letters: su. Private to "sum": m. Private to "suyo": oy.

"sum" · 3 letters · shape CVC  ·  "suyo" · 4 letters · shape CVVV

Known mistypes of this pair

  • suyossuyo · suoy · suyyo · syuo · usyo

Frequently Asked Questions

Can "sum" and "suyo" be used interchangeably?
No - they are not even the same part of speech. "sum" is a noun and "suyo" a pronoun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "sum" vs "suyo" - which ranks higher?
"suyo" is the more common of the two: it sits at frequency rank #2,426 in our Spanish list, against #27,789 for "sum". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Eye-level mix-up between "sum" and "suyo" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "sum" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "suyo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #213,090 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "sum" and "suyo" also get mixed up with nearby pairs, the highest-scored neighbour is "stem vs sum". 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 #213,090 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list