fidelvsfidesWhich spelling fits?

Quick tell: fidel is a adjective, fides is a noun, so they fill different roles in a sentence.

Which to use

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

#21,015
“fidel” frequency rank
#38,296
“fides” frequency rank
59311
confusion score

Side-by-Side Comparison

Feature fidel fides
Definition Gai, joyeux. Foi, croyance, confiance, créance, crédit.

Letter map: fidel vs fides

Shared letters muted; letters that set fidel and fides apart highlighted. Shared run: 4. fidel and fides follow the identical consonant-vowel pattern (CVCVC). Same shape at a glance is often the real trap, independent of shared letters.

5 ch
fidel
5 ch
fides

Grammar separator: fidel vs fides

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: fidel is anadjective and fidesanoun. On the page they differ by a single letter - l in “fidel” becomes s in “fides”. Our composite confusion score for this pair is 59311, derived from the frequency rank of both members and their visual similarity.

fidel is recorded at frequency rank #21,015, classified as anadj, pronounced \fiˑˈdeːl\. fides is at rank #38,296, tagged as anoun.

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 59311, this pair ranks #103,875 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of fidel vs fides

Shared letters: defi. Private to "fidel": l. Private to "fides": s.

"fidel" · 5 letters · shape CVCVC  ·  "fides" · 5 letters · shape CVCVC

Known mistypes of this pair

  • fidel ← fdiel · ffidel · fiddel · fidell · fidle · ifdel
  • fides ← fdies · ffides · fiddes · fidess · fidse · fieds · ifdes

Frequently Asked Questions

Do "fidel" and "fides" mean the same thing in a sentence?
No - they are not even the same part of speech. "fidel" is an adjective and "fides" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "fidel" or "fides"?
"fidel" is the more common of the two: it sits at frequency rank #21,015 in our French list, against #38,296 for "fides". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Done with this confusable. These links stay specific to "fidel" and "fides".

  • Full dictionary entry for "fidel" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "fides" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #103,875 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "fidel" and "fides" also get mixed up with nearby pairs, the highest-scored neighbour is "fides vs filez". 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 #103,875 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