Cybill \cy-bi-ll\ as a girl's name is a variant of Cybil (Greek), Sibyl (Greek) and Sybil (Greek), and the meaning of Cybill is "prophetess, oracle".
The baby name Cybill sounds like Sybill and Cybilla. Other similar baby names are Cyrilla, Cybele, Cyrille, Sybille and Sybilla.