Morgance \m(o)-rgan-ce, mor-ga-nce\ as a girl's name is a variant of Morgan (Welsh, Old English), and the meaning of Morgance is "circling sea or great brightness; bright or white sea dweller".
The baby name Morgance sounds like Morganne and Morgane. Other similar baby names are Morgayne, Morgann, Morganica, Morgana and Morgaine.