uniónvsunísonoWhat's the difference?

Quick tell: unión is a noun, unísono is an adjective, so they fill different roles in a sentence.

Which to use

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

#904
“unión” frequency rank
#27,811
“unísono” frequency rank
28715
confusion score

Side-by-Side Comparison

Feature unión unísono
Definition Acción y efecto de unir o unirse. Que suena similar o que tiene el mismo tono que otra cosa.

Where the spellings diverge

Shared letters are muted; the letters that actually set unión and unísono apart are highlighted. They share 3 letters in sequence, which is exactly why the eye skips the difference.

5 ch
unión
7 ch
unísono

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: unión is [uˈnjõn] while unísono is [uˈnisono]. 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 (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 28715, derived from the frequency rank of both members and their visual similarity.

unión is recorded at frequency rank #904, classified as anoun, pronounced [uˈnjõn]. unísono is at rank #27,811, tagged as anadj, pronounced [uˈnisono].

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 28715, this pair ranks #220,635 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of unión vs unísono

Shared letters: nu. Private to "unión": . Private to "unísono": osí.

"unión" · 5 letters · shape VCVVC  ·  "unísono" · 7 letters · shape VCVCVCV

Frequency comparison

unión#904
unísono#27,811

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "unión" and "unísono" be used interchangeably?
No - they are not even the same part of speech. "unión" is a noun and "unísono" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "unión" or "unísono"?
"unión" is the more common of the two: it sits at frequency rank #904 in our Spanish list, against #27,811 for "unísono". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Remembering unión vs unísono

The fastest way to pick the right one every time.

  • Check the role first: if you need a noun, it's “unión”; for an adjective, it's “unísono”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “unión” 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 FrequencyWords open word-frequency list