"To understand" in English is comprendere in Italian. The present infinitive also translates literally as "to comprehend" in English. The pronunciation will be "kom-PREN-dey-rey" in Italian.
Capisci! in the singular, Capire in the singular and in the plural, and Capite! in the plural are Italian equivalents of the English word "Understand!" Context makes clear whether one "you" (cases 1, 2) or two or more "you all" (examples 2, 3) suits. The respective pronunciations will be "ka-PEA-shee" in the singular, "ka-PEA-rey" in the singular and plural, and ka-PEA-tey" in the plural in Italian.
Capire in Italian is "To understand" in English.
[Tu] capisci un po d'italiano
"tu non capisce mi." "You do not understand me."
Lei non capisce is an Italian equivalent of the English phrase "She doesn't understand." The declaration also translates as "(formal singular) You do not understand" in English. The pronunciation will be "ley non ka-PEA-shey" in Italian.
Non capico quello che dici
When translated from English to Italian a raccoon is a procione
"About" in English is circa in Italian.
"Out" in English is fuori in Italian.
"Or" in English is o in Italian.
"Not italian" in English is non italiano in Italian.
"To have" in English means avere in Italian.
"How is he?" in English is Come sta? in Italian.