Which to use
“foster” and “frotter” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #17,141
- “foster” frequency rank
- #13,600
- “frotter” frequency rank
- 30741
- confusion score
Side-by-Side Comparison
| Feature | foster | frotter |
|---|---|---|
| Definition | Alimenter, nourrir. | Passer une chose sur une autre à quelques ou plusieurs reprises, en appuyant, en pressant. |
Where the eye mixes foster and frotter
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. foster runs 6 letters (CVCCVC) against frotter's 7 (CCVCCVC) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses foster with frotter
A purely visual mix-up. foster (\ˈfɒs.tə\) and frotter (\fʁɔ.te\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 30741, derived from the frequency rank of both members and their visual similarity.
foster is recorded at frequency rank #17,141, classified as averb, pronounced \ˈfɒs.tə\. frotter is at rank #13,600, tagged as averb, pronounced \fʁɔ.te\.
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 30741, this pair ranks #308,282 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of foster vs frotter
Shared letters: efort. Private to "foster": s. Private to "frotter": -.
"foster" · 6 letters · shape CVCCVC · "frotter" · 7 letters · shape CCVCCVC
Known mistypes of this pair
Frequently Asked Questions
Do "foster" and "frotter" mean the same thing in a sentence?
Frequency check: "foster" vs "frotter" - which ranks higher?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "foster" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "frotter" - compare definitions side by side with the headword page. Word entry
- This pair ranks #308,282 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "foster" and "frotter" also get mixed up with nearby pairs, the highest-scored neighbour is "fontes vs foster". 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 #308,282 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.