Which to use
“união” is a noun and “único” is an adjective - they look or sound alike but fill different roles in a sentence.
- #815
- “união” frequency rank
- #515
- “único” frequency rank
- 1330
- confusion score
Side-by-Side Comparison
| Feature | união | único |
|---|---|---|
| Definition | ato ou resultado de unir-se | singular |
Where the spellings diverge
Shared letters are muted; the letters that actually set união and único apart are highlighted. They share 3 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
These two trip readers on the page rather than in the ear: união is /u.ˈnjɐ̃w̃/ while único is /ˈu.ni.ku/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 1330, derived from the frequency rank of both members and their visual similarity.
união is recorded at frequency rank #815, classified as anoun, pronounced /u.ˈnjɐ̃w̃/. único is at rank #515, tagged as anadj, pronounced /ˈu.ni.ku/.
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 1330, this pair ranks #74,255 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of união vs único
Shared letters: ino. Private to "união": uã. Private to "único": cú.
"união" · 5 letters · shape VCVVV · "único" · 5 letters · shape VCVCV
Frequency comparison
Frequently Asked Questions
Can "união" and "único" be used interchangeably?
Which is more common, "união" or "único"?
Remembering união vs único
The fastest way to pick the right one every time.
- Check the role first: if you need a noun, it's “união”; for an adjective, it's “único”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “união” entry
- Browse more pairs most likely to be confused. Most confusable