In the Unknown origin, Rainie means "Rainie \ra(i)-nie\ as a girl's name.
The baby name Rainie sounds like Rainee, Raine and Rawnie. Other similar baby names are Lannie, Sannie, Nannie, Tinie, Danie, Laine, Janie, Fannie, Hannie, Renie, Jannie, Jaynie, Jainee, Jaine, Lanie, Marnie, Randie, Paine, Raina, Rayne, Rainy, Rainey, Rainah, Raene, Rain, Raisse, Ramie, Ranae, Rani, Ranit, Ranice, Rania, Ranee, Ranite, Ravinia, Raynee, Reine, Rennie, Ronnie, Rasine, Zannie, Tawnie and Vannie."