Phillis \ph(il)-lis\ as a girl's name is a variant of Phyllis (Greek), and the meaning of Phillis is "greenery".
The baby name Phillis sounds like Philis, Phyllys, Phylliss, Phylis, Philys and Fillis. Other similar baby names are Phillie, Philia, Phillina, Philline, Philly, Phillipa, Phillida, Phillira and Phyllie.