sickvssireConfusable pair

Quick tell: sick is a adjective, sire is a noun, so they fill different roles in a sentence.

Which to use

“sick” is an adjective and “sire” is a noun - they look or sound alike but fill different roles in a sentence.

#31,561
“sick” frequency rank
#48,121
“sire” frequency rank
79682
confusion score

Side-by-Side Comparison

Feature sick sire
Definition doente senhor (como forma de tratamento a alguém superior)

Letter map: sick vs sire

Shared letters muted; letters that set sick and sire apart highlighted. Shared run: 2. sick (CVCC) and sire (CVCV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

4 ch
sick
4 ch
sire

Part-of-speech tell for sick / sire

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: sick is anadjective and sireanoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 79682, derived from the frequency rank of both members and their visual similarity.

sick is recorded at frequency rank #31,561, classified as anadj, pronounced /sɪk/. sire is at rank #48,121, tagged as anoun.

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 79682, this pair ranks #1,461 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of sick vs sire

Shared letters: is. Private to "sick": ck. Private to "sire": er.

"sick" · 4 letters · shape CVCC  ·  "sire" · 4 letters · shape CVCV

Known mistypes of this pair

  • sick ← isck · scik · sicck · sickk · sikc · ssick
  • sire ← isre · sier · sirre · srie · ssire

Frequently Asked Questions

Can "sick" and "sire" be used interchangeably?
No - they are not even the same part of speech. "sick" is an adjective and "sire" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "sick" or "sire"?
"sick" is the more common of the two: it sits at frequency rank #31,561 in our Portuguese list, against #48,121 for "sire". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Done with this confusable. These links stay specific to "sick" and "sire".

  • Full dictionary entry for "sick" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sire" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,461 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "sick" and "sire" also get mixed up with nearby pairs, the highest-scored neighbour is "shire vs sire". 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 #1,461 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