cedovscioConfusable pair

Quick tell: cedo is a adverb, cio is a noun, so they fill different roles in a sentence.

Which to use

“cedo” is an adverb and “cio” is a noun - they look or sound alike but fill different roles in a sentence.

#1,043
“cedo” frequency rank
#22,564
“cio” frequency rank
23607
confusion score

Side-by-Side Comparison

Feature cedo cio
Definition Antes da hora desejada ou costumeira, prematuramente; período de maior apetite sexual e fertilidade de certos animais

Where the eye mixes cedo and cio

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

4 ch
cedo
3 ch
cio

Look-alike desk: cedo vs cio

These two trip readers on the page rather than in the ear: cedo is /ˈse.du/ while cio is /ˈsi.u/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (adverb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 23607, derived from the frequency rank of both members and their visual similarity.

cedo is recorded at frequency rank #1,043, classified as anadv, pronounced /ˈse.du/. cio is at rank #22,564, tagged as anoun, pronounced /ˈsi.u/.

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 23607, this pair ranks #46,193 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of cedo vs cio

Shared letters: co. Private to "cedo": de. Private to "cio": i.

"cedo" · 4 letters · shape CVCV  ·  "cio" · 3 letters · shape CVV

Known mistypes of this pair

  • cedoccedo · cdeo · ceddo · ceod · ecdo

Frequently Asked Questions

Is swapping "cedo" for "cio" ever safe?
No - they are not even the same part of speech. "cedo" is an adverb and "cio" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "cedo" vs "cio" - which ranks higher?
"cedo" is the more common of the two: it sits at frequency rank #1,043 in our Portuguese list, against #22,564 for "cio". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

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

  • Full dictionary entry for "cedo" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "cio" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #46,193 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "cedo" and "cio" also get mixed up with nearby pairs, the highest-scored neighbour is "ciao vs cio". 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 #46,193 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