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cio

Portuguese, noun/ˈsi.u/

cio is spelled C-I-O (3 letters) and appears 1.9 times per million words in written Portuguese, the 22,561st most frequent Portuguese word form (wordfreq, 2021 data). Cio is a Portuguese masculine noun meaning “heat (condition where a mammal is aroused sexually or where it is especially fertile)” (English Wiktionary, September 2026). The Portuguese Wiktionary (Wikcionário) defines it as “período de maior apetite sexual e fertilidade de certos animais”.

What does cio mean in English?

noun

  1. 1

    masculineheat (condition where a mammal is aroused sexually or where it is especially fertile)

    A gata está no cio.

Source: English Wiktionary, Portuguese section, dump of September 2, 2026 (CC BY-SA 4.0).

How Portuguese dictionaries define it

noun: 1. período de maior apetite sexual e fertilidade de certos animais 2. viço; vigor das plantas

The definition in the Portuguese Wiktionary (Wikcionário), in Portuguese.

Source: Portuguese Wiktionary (Wikcionário), dump of September 1, 2026 (CC BY-SA 4.0), through kaikki.org.

Forms of cio

  • cios plural

Source: English Wiktionary and Portuguese Wiktionary (Wikcionário) (dumps of September 2, 2026 and September 1, 2026).

How do you pronounce cio?

  • Brazil /ˈsi.u/
  • Brazil /ˈsiw/
  • Brazil [ˈsiʊ̯]

Sources: English Wiktionary, Portuguese Wiktionary (Wikcionário) (dumps of September 2, 2026 and September 1, 2026); recordings from Wikimedia Commons.

English words that translate to cio

Source: the translation tables of the English Wiktionary, dump of September 2, 2026.

How common is cio in Portuguese?

cio appears 1.9 times per million words in written Portuguese.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

What to look up after cio