Which to use
“soi” is a verb and “su” is an adjective - they look or sound alike but fill different roles in a sentence.
- #38,396
- “soi” frequency rank
- #20
- “su” frequency rank
- 38416
- confusion score
Side-by-Side Comparison
| Feature | soi | su |
|---|---|---|
| Definition | Segunda persona singular informal en el voseo chileno (vos) del presente de indicativo del verbo ser. | Adjetivo posesivo de la tercera persona; de él, de ella, de ellos, de ellas. |
Where the spellings diverge
Shared letters are muted; the letters that actually set soi and su apart are highlighted. They share 1 letter in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
soi and su form a confusable pair in the Spanish index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They differ by 1 letter(s) in length - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 38416, derived from the frequency rank of both members and their visual similarity.
soi is recorded at frequency rank #38,396, classified as averb, pronounced [ˈsoj]. su is at rank #20, tagged as anadj, pronounced [su].
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 38416, this pair ranks #170,144 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Frequency comparison
Frequently Asked Questions
Can "soi" and "su" be used interchangeably?
Remembering soi vs su
The fastest way to pick the right one every time.
- Check the role first: if you need a verb, it's “soi”; for an adjective, it's “su”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “soi” entry
- Browse more pairs most likely to be confused. Most confusable