Which to use
“filthy” and “frothy” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #9,608
- “filthy” frequency rank
- #45,381
- “frothy” frequency rank
- 54989
- confusion score
Side-by-Side Comparison
| Feature | filthy | frothy |
|---|---|---|
| Definition | Covered with filth; very dirty. | Foamy or churned to the point of becoming infused with bubbles. |
Letter map: filthy vs frothy
Shared letters muted; letters that set filthy and frothy apart highlighted. Shared run: 4.
Corpus notes: filthy and frothy
filthy and frothy 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 share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 54989, derived from the frequency rank of both members and their visual similarity.
filthy is recorded at frequency rank #9,608, classified as anadj, pronounced /ˈfɪlθi/. frothy is at rank #45,381, tagged as anadj.
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 54989, this pair ranks #136,964 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of filthy vs frothy
Shared letters: fhty. Private to "filthy": il. Private to "frothy": or.
"filthy" · 6 letters · shape CVCCCV · "frothy" · 6 letters · shape CCVCCV
Known mistypes of this pair
Frequently Asked Questions
Is swapping "filthy" for "frothy" ever safe?
Frequency check: "filthy" vs "frothy" - which ranks higher?
Useful next steps
Done with this confusable. These links stay specific to "filthy" and "frothy".
- Full dictionary entry for "filthy" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "frothy" - compare definitions side by side with the headword page. Word entry
- This pair ranks #136,964 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "filthy" and "frothy" also get mixed up with nearby pairs, the highest-scored neighbour is "frith vs frothy". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #136,964 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.