Monica \m(o)-ni-ca\ as a girl's name is pronounced MAH-ni-kah. Possibly (Greek) "solitary" or (Latin) "to advise; nun". Saint Monica, the mother of Saint Augustine, prayed for her son and saved him from self-destruction. As a result, Saint Augustine became one of the greatest saints in history. The name is poopular with Catholics. Fictional character Monica Geller, on the TV sitcom "Friends".
A baby name that sounds like Monica is Manika.