Sylvania rhymes with:
transylvania, transylvania, albania, compania, dromomania, germania, lithuania, lusitania, mania, mauritania, megalomania, pomerania, romania, rumania, ruritania, tanzania, tasmania, transylvania, zenia
Sylvania sounds like:
salvina, salvino, schlobohm, sclafani, silvana, slaven, slavin, slavonia, slepian, sleven, slevin, slip-on, slovene, slovenia, slovenian, slovonia, sullivan, sylvain, sylvan, sylvana