Ys vs Yui, What's the Difference?

Which to use

“Ys” and “Yui” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#33,493
“Ys” frequency rank: #38,698
“Yui” frequency rank: 72191
confusion score

Side-by-Side Comparison

Feature	Ys	Yui
Definition	A mythical sunken city in Brittany, France.	A unisex given name from Japanese.

Letter map: Ys vs Yui

Shared letters muted; letters that set Ys and Yui apart highlighted. Shared run: 1.

2 ch

3 ch

Yui

Corpus notes: Ys and Yui

Ys and Yui are indexed as a confusable English pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 72191, derived from the frequency rank of both members and their visual similarity.

Ys is recorded at frequency rank #33,493, classified as aname, pronounced /ˈiːs/. Yui is at rank #38,698, tagged as aname.

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 72191, this pair ranks #43,901 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of Ys vs Yui

Shared letters: y. Private to "Ys": s. Private to "Yui": iu.

"Ys" · 2 letters · shape VC · "Yui" · 3 letters · shape VVV

Frequently Asked Questions

Is swapping "Ys" for "Yui" ever safe?

No. They differ by 1 letter(s) in length, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.

Frequency check: "Ys" vs "Yui" - which ranks higher?

"Ys" is the more common of the two: it sits at frequency rank #33,493 in our English list, against #38,698 for "Yui". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pair "Ys" vs "Yui" is on the table, pick a follow-up below.

Full dictionary entry for "Ys" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "Yui" - compare definitions side by side with the headword page. Word entry
This pair ranks #43,901 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
"Ys" and "Yui" also get mixed up with nearby pairs, the highest-scored neighbour is "Yau vs Yui". Nearby pair

Confusion rank #43,901 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.