fonsvsfortsWhich spelling fits?

Quick tell: fons is a noun, forts is an adjective, so they fill different roles in a sentence.

Which to use

“fons” is a noun and “forts” is an adjective - they look or sound alike but fill different roles in a sentence.

#43,445
“fons” frequency rank
#3,075
“forts” frequency rank
46520
confusion score

Side-by-Side Comparison

Feature fons forts
Definition Fonds (patrimoine). Masculin pluriel de fort

Letter map: fons vs forts

Shared letters muted; letters that set fons and forts apart highlighted. Shared run: 3.

4 ch
fons
5 ch
forts

Role in the sentence - fons and forts

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: fons is anoun and fortsanadjective. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 46520, derived from the frequency rank of both members and their visual similarity.

fons is recorded at frequency rank #43,445, classified as anoun. forts is at rank #3,075, tagged as anadj, pronounced \fɔʁ\.

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 46520, this pair ranks #194,248 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of fons vs forts

Shared letters: fos. Private to "fons": n. Private to "forts": rt.

"fons" · 4 letters · shape CVCC  ·  "forts" · 5 letters · shape CVCCC

Known mistypes of this pair

  • fonsffons · fnos · fonns · fonss · fosn · ofns
  • fortsfforts · forrts · forst · fortss · fortts · fotrs · frots · ofrts

Frequently Asked Questions

Is swapping "fons" for "forts" ever safe?
No - they are not even the same part of speech. "fons" is a noun and "forts" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "fons" or "forts"?
"forts" is the more common of the two: it sits at frequency rank #3,075 in our French list, against #43,445 for "fons". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Done with this confusable. These links stay specific to "fons" and "forts".

  • Full dictionary entry for "fons" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "forts" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #194,248 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "fons" and "forts" also get mixed up with nearby pairs, the highest-scored neighbour is "foins vs fons". 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 #194,248 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list