su vs xu, What's the Difference?

Which to use

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

#20
“su” frequency rank: #35,828
“xu” frequency rank: 35848
confusion score

Side-by-Side Comparison

Feature	su	xu
Definition	Adjetivo posesivo de la tercera persona; de él, de ella, de ellos, de ellas.	Unidad monetaria de Vietnam, la centésima parte de un dong y décima de un hào.

Same sound, different letters: su vs xu

Muted letters are shared; highlighted letters are the only spelling cue when pronunciation matches. Shared run: 1 letter.

2 ch

Spelling & Dictionary Insight

Say them out loud and nothing separates them: su and xu carry the same recorded pronunciation, [su]. Grammar is what tells them apart: one is anadjective, the other anoun, so most sentences will only accept one of them. They differ by a single letter - s in “su” becomes x in “xu”. Our composite confusion score for this pair is 35848, derived from the frequency rank of both members and their visual similarity.

su is recorded at frequency rank #20, classified as anadj, pronounced [su]. xu is at rank #35,828, tagged as anoun, pronounced [ˈsu].

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 35848, this pair ranks #183,854 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of su vs xu

Shared letters: u. Private to "su": s. Private to "xu": x.

"su" · 2 letters · shape CV · "xu" · 2 letters · shape CV

Frequently Asked Questions

Can "su" and "xu" be used interchangeably?

No - they are not even the same part of speech. "su" is an adjective and "xu" a noun, so a sentence built for one is usually ungrammatical with the other.

Which is more common, "su" or "xu"?

"su" is the more common of the two: it sits at frequency rank #20 in our Spanish list, against #35,828 for "xu". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

You've compared "su" and "xu". Here's where to go from here.

Full dictionary entry for "su" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "xu" - compare definitions side by side with the headword page. Word entry
This pair ranks #183,854 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
"su" and "xu" also get mixed up with nearby pairs, the highest-scored neighbour is "xa vs xu". Nearby pair

PlainSpell is a reference corpus, not spelling advice. Verify unusual forms in context.