sexvssinWhat's the difference?

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

Which to use

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

#7,835
“sex” frequency rank
#8,687
“sin” frequency rank
16522
confusion score

Side-by-Side Comparison

Feature sex sin
Definition sexo, gênero aquilo, aquele

Where the spellings diverge

Shared letters are muted; the letters that actually set sex and sin apart are highlighted. They share 1 letter in sequence, which is exactly why the eye skips the difference.

3 ch
sex
3 ch
sin

Spelling & Dictionary Insight

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: sex is anoun and sinapronoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 16522, derived from the frequency rank of both members and their visual similarity.

sex is recorded at frequency rank #7,835, classified as anoun, pronounced /sɛks/. sin is at rank #8,687, tagged as apron.

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 16522, this pair ranks #54,983 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of sex vs sin

Shared letters: s. Private to "sex": ex. Private to "sin": in.

"sex" · 3 letters · shape CVC  ·  "sin" · 3 letters · shape CVC

Frequency comparison

sex#7,835
sin#8,687

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "sex" and "sin" be used interchangeably?
No - they are not even the same part of speech. "sex" is a noun and "sin" a pronoun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "sex" or "sin"?
"sex" is the more common of the two: it sits at frequency rank #7,835 in our Portuguese list, against #8,687 for "sin". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering sex vs sin

The fastest way to pick the right one every time.

  • Check the role first: if you need a noun, it's “sex”; for a pronoun, it's “sin”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “sex” 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