sievsslideWhich spelling fits?

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

Which to use

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

#40,788
“sie” frequency rank
#17,389
“slide” frequency rank
58177
confusion score

Side-by-Side Comparison

Feature sie slide
Definition ela, pronome pessoal feminino do caso nominativo da terceira pessoa do singular: ver eslaide

Where the eye mixes sie and slide

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

3 ch
sie
5 ch
slide

Visual trap between sie and slide

These two trip readers on the page rather than in the ear: sie is /zi:/ ouvir^(fonte ?) ouvir^(fonte ?) while slide is /ˈslaj.dɨ/. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (pronoun vs noun), which is usually the fastest check. Our composite confusion score for this pair is 58177, derived from the frequency rank of both members and their visual similarity.

sie is recorded at frequency rank #40,788, classified as apron, pronounced /zi:/ ouvir^(fonte ?) ouvir^(fonte ?). slide is at rank #17,389, tagged as anoun, pronounced /ˈslaj.dɨ/.

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 58177, this pair ranks #8,900 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of sie vs slide

Shared letters: eis. Private to "sie": -. Private to "slide": dl.

"sie" · 3 letters · shape CVV  ·  "slide" · 5 letters · shape CCVCV

Known mistypes of this pair

  • slidelside · silde · sldie · slidde · slied · sllide · sslide

Frequently Asked Questions

Can "sie" and "slide" be used interchangeably?
No - they are not even the same part of speech. "sie" is a pronoun and "slide" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "sie" or "slide" show up more?
"slide" is the more common of the two: it sits at frequency rank #17,389 in our Portuguese list, against #40,788 for "sie". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "sie" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "slide" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #8,900 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "sie" and "slide" also get mixed up with nearby pairs, the highest-scored neighbour is "Sau vs sie". 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 #8,900 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