sadvsstarWhat's the difference?

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

Which to use

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

#13,385
“sad” frequency rank
#3,645
“star” frequency rank
17030
confusion score

Side-by-Side Comparison

Feature sad star
Definition triste estrela

Where the eye mixes sad and star

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

3 ch
sad
4 ch
star

Visual trap between sad and star

These two trip readers on the page rather than in the ear: sad is /sæd/ while star is /stɑ:ʳ/ ouvir^(fonte ?). 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 (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 17030, derived from the frequency rank of both members and their visual similarity.

sad is recorded at frequency rank #13,385, classified as anadj, pronounced /sæd/. star is at rank #3,645, tagged as anoun, pronounced /stɑ:ʳ/ ouvir^(fonte ?).

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 17030, this pair ranks #54,325 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of sad vs star

Shared letters: as. Private to "sad": d. Private to "star": rt.

"sad" · 3 letters · shape CVC  ·  "star" · 4 letters · shape CCVC

Known mistypes of this pair

  • starsatr · sstar · starr · stra · sttar · tsar

Frequently Asked Questions

Is swapping "sad" for "star" ever safe?
No - they are not even the same part of speech. "sad" is an adjective and "star" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "sad" vs "star" - which ranks higher?
"star" is the more common of the two: it sits at frequency rank #3,645 in our Portuguese list, against #13,385 for "sad". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "sad" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "star" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #54,325 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "sad" and "star" also get mixed up with nearby pairs, the highest-scored neighbour is "sad vs soap". 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 #54,325 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