suds vs Sui, What's the Difference?

Which to use

“suds” is a noun and “Sui” is a name - they look or sound alike but fill different roles in a sentence.

#49,655
“suds” frequency rank: #28,040
“Sui” frequency rank: 77695
confusion score

Side-by-Side Comparison

Feature	suds	Sui
Definition	Lather; foam or froth formed by mixing soap and water.	The Sui dynasty of China which ruled from 581 to 618.

Where the spellings diverge

Shared letters are muted; the letters that actually set suds and Sui apart are highlighted. They share 2 letters in sequence, which is exactly why the eye skips the difference.

4 ch

suds

3 ch

Sui

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: suds is /sʌdz/ while Sui is /sweɪ/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs name), which is usually the fastest check. Our composite confusion score for this pair is 77695, derived from the frequency rank of both members and their visual similarity.

suds is recorded at frequency rank #49,655, classified as anoun, pronounced /sʌdz/. Sui is at rank #28,040, tagged as aname, pronounced /sweɪ/.

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 77695, this pair ranks #26,558 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of suds vs Sui

Shared letters: su. Private to "suds": d. Private to "Sui": i.

"suds" · 4 letters · shape CVCC · "Sui" · 3 letters · shape CVV

Known mistypes of this pair

suds ← sdus · ssuds · sudds · sudss · susd · usds

Frequency comparison

suds#49,655

Sui#28,040

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "suds" and "Sui" be used interchangeably?

No - they are not even the same part of speech. "suds" is a noun and "Sui" a name, so a sentence built for one is usually ungrammatical with the other.

Which is more common, "suds" or "Sui"?

"Sui" is the more common of the two: it sits at frequency rank #28,040 in our English list, against #49,655 for "suds". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering suds vs Sui

The fastest way to pick the right one every time.

Check the role first: if you need a noun, it's “suds”; for a name, it's “Sui”.
See each word in full, definition, IPA, etymology and its other confusables. Full “suds” entry
Browse more pairs most likely to be confused. Most confusable