Sei serio is an Italian equivalent of 'Are you serious'. The verb 'sei' means '[you] are'. The masculine adjective 'serio' means 'serious'. Together, they're pronounced 'seh SEH-ree-oh'.
That's what's said to a male. If it's a case of a 'serious' female, the word becomes 'seria'. It's pronounced 'SEH-ree-ah'.
"Serious" is a literal English equivalent of the Italian word seria. The word functions as a feminine singular adjective. The pronunciation will be "SEH-rya" in Italian.
When translated from English to Italian a raccoon is a procione
"Out" in English is fuori in Italian.
"About" in English is circa in Italian.
"Or" in English is o in Italian.
"Not italian" in English is non italiano in Italian.
"Serious" is an English equivalent of the Italian and Spanish word seria. The word serves as the feminine singular form of an adjective. The pronunciation will be "SEH-rya" in Italian and Spanish.
"To have" in English means avere in Italian.
"And you?" in English is E tu? in Italian.
"Who we are" in English is Chi siamo in Italian.
"About me!" in English is Su di me! in Italian.
Questa in Italian is "this" in English.