Un po' is an Italian equivalent of 'a little'. It's pronounced 'oon poh'. The masculine indefinite article 'un'means 'a, one'. The adverb 'po' is a shortened form of 'poco', which means 'little'.
"Little brother" in English is fratellino in Italian.
"Little man" in Italian is "Omino."
"Little island" in English means isolotto in Italian.
"Little one" in English is piccolino in Italian.
"Little fish" in English is pesciolino in Italian.
"Little onion" in English is cippollino in Italian.
Acero
Piccolo is the Italian equivalent of 'little'. It's the masculine form of the adjective. The feminine form is 'piccola'. But another Italian word for 'little', 'piccini', tends to be used in the phrase 'the little ones'.
"Little mouse" in English means topolino in Italian.
The Italian translation for "little pig" is "maialino."
"Little" in English is piccola in the feminine and piccolo in the masculine in Italian.
"Little flower" in English means fiorellino in Italian.