saiuvssuWhat's the difference?

Quick tell: saiu is a verb, su is an adjective, so they fill different roles in a sentence.

Which to use

“saiu” is a verb and “su” is an adjective - they look or sound alike but fill different roles in a sentence.

#1,035
“saiu” frequency rank
#6,713
“su” frequency rank
7748
confusion score

Side-by-Side Comparison

Feature saiu su
Definition Terceira pessoa do singular do pretérito perfeito do indicativo do verbo sair. dele

Where the spellings diverge

Shared letters are muted; the letters that actually set saiu and su apart are highlighted. They share 2 letters in sequence, which is exactly why the eye skips the difference.

4 ch
saiu
2 ch
su

Spelling & Dictionary Insight

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: saiu is averb and suanadjective. On the page they differ by 2 letter(s) in length. Our composite confusion score for this pair is 7748, derived from the frequency rank of both members and their visual similarity.

saiu is recorded at frequency rank #1,035, classified as averb. su is at rank #6,713, tagged as anadj.

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 7748, this pair ranks #66,304 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of saiu vs su

Shared letters: su. Private to "saiu": ai. Private to "su": -.

"saiu" · 4 letters · shape CVVV  ·  "su" · 2 letters · shape CV

Known mistypes of this pair

  • saiuasiu · saui · siau · ssaiu

Frequency comparison

saiu#1,035
su#6,713

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "saiu" and "su" be used interchangeably?
No - they are not even the same part of speech. "saiu" is a verb and "su" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "saiu" or "su"?
"saiu" is the more common of the two: it sits at frequency rank #1,035 in our Portuguese list, against #6,713 for "su". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering saiu vs su

The fastest way to pick the right one every time.

  • Check the role first: if you need a verb, it's “saiu”; for an adjective, it's “su”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “saiu” entry
  • Browse more pairs most likely to be confused. Most confusable

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

Source: FrequencyWords open word-frequency list