fonvsforWhich spelling fits?

Quick tell: fon is a adjective, for is a verb, so they fill different roles in a sentence.

Which to use

“fon” is an adjective and “for” is a verb - they look or sound alike but fill different roles in a sentence.

#44,372
“fon” frequency rank
#220
“for” frequency rank
44592
confusion score

Side-by-Side Comparison

Feature fon for
Definition relativo à etnia dos fons primeira pessoa do singular do futuro do subjuntivo do verbo ser

Where the eye mixes fon and for

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

3 ch
fon
3 ch
for

Why the eye confuses fon with for

These two trip readers on the page rather than in the ear: fon is /ˈfõ/ while for is /ˈfoɾ/. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - n in “fon” becomes r in “for”, and the parts of speech differ too (adjective vs verb), which is usually the fastest check. Our composite confusion score for this pair is 44592, derived from the frequency rank of both members and their visual similarity.

fon is recorded at frequency rank #44,372, classified as anadj, pronounced /ˈfõ/. for is at rank #220, tagged as averb, pronounced /ˈfoɾ/.

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 44592, this pair ranks #20,858 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of fon vs for

Shared letters: fo. Private to "fon": n. Private to "for": r.

"fon" · 3 letters · shape CVC  ·  "for" · 3 letters · shape CVC

Frequently Asked Questions

Do "fon" and "for" mean the same thing in a sentence?
No - they are not even the same part of speech. "fon" is an adjective and "for" a verb, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "fon" or "for" show up more?
"for" is the more common of the two: it sits at frequency rank #220 in our Portuguese list, against #44,372 for "fon". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "fon" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "for" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #20,858 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "fon" and "for" also get mixed up with nearby pairs, the highest-scored neighbour is "fern vs fon". Nearby pair

Confusion rank #20,858 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list