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Italian · Pronunciation Guide

How do you pronounce "curioso" in Italian?

koo-RYOH-zoh, stressed on the middle syllable. In IPA: /ku.ˈrjo.zo/. The "i" glides quickly into the following vowel instead of forming its own separate beat.

curioso /ku.ˈrjo.zo/

Written as four letters after the initial "cu" but pronounced as just three syllables, cu-rio-so — the "i" and "o" of "rio" blend into a single glide rather than staying as two distinct vowel sounds.

Listen: curioso

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Sound it out

The spelling looks like it should stretch into four syllables the way the English cognate "cu-ri-ous" sometimes does, but Italian "rio" collapses into one quick syllable, so the whole word moves faster than English speakers expect.

cu A hard c before u, a plain "koo" — c is always hard before a, o, or u.
rio The i glides quickly into the o, landing as one syllable, "ryo," not two separate beats "ree-oh." This is also the stressed syllable of the word.
-so The same "-oso" ending found in "orgoglioso": a closed "oh" followed by a soft, voiced z, matching English "-ous" in meaning but not in sound.

Hear it in a sentence

Il bambino è molto curioso.

The child is very curious.

Listen: Il bambino è molto curioso.

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"Il bambino è molto curioso" places the intensifier "molto" (very) directly before the adjective, the same word order English uses for "very curious" — one of the rare spots where Italian and English line up exactly. The adjective agrees with "il bambino," masculine singular, which is why it's "curioso" and not "curiosa."

"Curioso" covers the same friendly, inquisitive sense as English "curious" (about a child asking questions, exploring, wanting to know things) and can also mean "curious" in the sense of "odd" or "strange," just as in English — context usually makes clear which sense is meant.

Where English speakers slip

Because "curious" and "curioso" are such close cognates, English speakers often try to stretch the word into four syllables the way some English speakers pronounce "cu-ri-ous." Italian compresses the "i" and "o" of "rio" into a single glide, so the correct rhythm is a tighter three-beat koo-RYO-zo, not a slower four-beat koo-REE-oh-zo.

The other common slip is reaching for an unvoiced English "s" sound at the end instead of the voiced "z" that "-oso" actually calls for — "curioso" should buzz slightly on that final consonant, closer to "curiozo" than "curiosso."