ciavscosaWhich spelling fits?

Quick tell: cia is a verb, cosa is a noun, so they fill different roles in a sentence.

Which to use

“cia” is a verb and “cosa” is a noun - they look or sound alike but fill different roles in a sentence.

#7,940
“cia” frequency rank
#46,679
“cosa” frequency rank
54619
confusion score

Side-by-Side Comparison

Feature cia cosa
Definition Pencher. Variante du IXᵉ siècle de chose.

Letter map: cia vs cosa

Shared letters muted; letters that set cia and cosa apart highlighted. Shared run: 2.

3 ch
cia
4 ch
cosa

Grammar separator: cia vs cosa

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: cia is averb and cosaanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 54619, derived from the frequency rank of both members and their visual similarity.

cia is recorded at frequency rank #7,940, classified as averb. cosa is at rank #46,679, tagged as anoun, pronounced \ˈkɔza ~ˈkɔzə\.

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 54619, this pair ranks #132,787 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of cia vs cosa

Shared letters: ac. Private to "cia": i. Private to "cosa": os.

"cia" · 3 letters · shape CVV  ·  "cosa" · 4 letters · shape CVCV

Known mistypes of this pair

  • cosaccosa · coas · cossa · csoa · ocsa

Frequently Asked Questions

Is swapping "cia" for "cosa" ever safe?
No - they are not even the same part of speech. "cia" is a verb and "cosa" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "cia" vs "cosa" - which ranks higher?
"cia" is the more common of the two: it sits at frequency rank #7,940 in our French list, against #46,679 for "cosa". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pair "cia" vs "cosa" is on the table, pick a follow-up below.

  • Full dictionary entry for "cia" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "cosa" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #132,787 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "cia" and "cosa" also get mixed up with nearby pairs, the highest-scored neighbour is "cosa vs coupa". 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 #132,787 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