sud
/sʌd/
"sud" is a 3-letter English headword indexed on PlainSpell.
The verdict
“sud” is a moderately-common English word, ranked #37,717 in English word frequency and used as a noun.
- #37,717
- frequency rank, English
- 3
- letters
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A bubble of lather or foam (the singular of suds).
Visual similarity to commonly confused words
How many letter changes separate each confused pair (Levenshtein distance, normalized).
Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).
| Property | Value |
|---|---|
| Headword | sud |
| Language | English |
| Part of speech | Noun |
| IPA | /sʌd/ |
| Letters | 3 |
| Frequency rank | #37,717 |
| Misspellings tracked | 0 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Where “sud” sits in English frequency
Spelling & Dictionary Insight
The English entry for sud is 3 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /sʌd/. Corpus data places it at rank #37,717 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "A bubble of lather or foam (the singular of suds).".
sud doesn't appear in our generated misspelling index, a straightforward case of a spelling with little room for common typos. It also participates in 20 confusable-pair relationships, "SW", "SV", "Sy", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.
Etymologically, the entry records: From a variation of sod, itself a shortening of sodden. Related to seethe. The correct English form is sud, spelled S-U-D.
Definition
- 1A bubble of lather or foam (the singular of suds).
Etymology
From a variation of sod, itself a shortening of sodden. Related to seethe.
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Using “sud”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is S-U-D - every other letter order is a misspelling in standard orthography.
- Say it as /sʌd/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Don't mix it up with “SW” - see the side-by-side comparison. sud vs SW
- Browse more English words and confusable pairs in the same reference. English words
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.