roundworm
/ˈɹaʊndˌwɝm/
"roundworm" is a 9-letter English headword indexed on PlainSpell.
The verdict
“roundworm” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 9
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - An invertebrate animal of the phylum Nematoda and other similar phyla. Many species of roundworms are parasites.
| Property | Value |
|---|---|
| Headword | roundworm |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈɹaʊndˌwɝm/ |
| Letters | 9 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “roundworm” sits in English frequency
Rare enough to double-check
roundworm is uncommon English outside the top frequency list, classed as anoun, transcribed /ˈɹaʊndˌwɝm/. Rarity is why readers land here mid-draft. Gloss: "An invertebrate animal of the phylum Nematoda and other similar phyla. Many species of roundworms are parasites.".
Zero misspellings are on record for roundworm in our index, a sign its spelling follows regular English conventions. This entry stands alone in our confusable dataset, which tends to mean the word is visually distinctive enough to stand on its own.
Etymologically, the entry records: From round + worm. The correct English form is roundworm, spelled R-O-U-N-D-W-O-R-M.
Definition
- 1An invertebrate animal of the phylum Nematoda and other similar phyla. Many species of roundworms are parasites.
Etymology
From round + worm.
Synonyms
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Using “roundworm”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is R-O-U-N-D-W-O-R-M - every other letter order is a misspelling in standard orthography.
- Say it as /ˈɹaʊndˌwɝm/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- 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.