Opaline \o-pali-ne, op(a)-line\ as a girl's name is a variant of Opal (Hindi, Sanskrit), and the meaning of Opaline is "gem, jewel".
The baby name Opaline sounds like Opalina, Abiline, Abalina, Abalene, Appoline and Apolline. Other similar baby names are Odeline and Oline.