Sylvie rhymes with:
silvey, silvi, silvie, silvey, silvi, silvie, alvey, calvi, castellvi, elvie, elvy, falvey, helvey, helvie, hulvey, malvie, melvie, ogilvie, ogilvy, olvey, salvi, selvey, silvey, silvi, silvie, stalvey
Sylvie sounds like:
salafia, saleeby, saliba, salif, saliva, salva, salve, salvi, salvia, salvo, scalf, scallop, scalp, schleif, schlepp, schliep, schlup, schoolboy, schulhauf, schulhof, schulof, schwalb, schwalbe, scialabba, seawolf, selbe, selby, self, selloff, selph, selva, selvey, shelby, shelev, shelf, shelp, shelve, sielaff, sieloff, sigoloff, silva, silvey, silvi, silvia, silvie, silvio, sizelove, slab, slaby, slap, slape, slaphappy, slappey, slav, slava, slave, sleep, sleepy, sleeve, slife, slip, sliva, slob, sloop, slop, slope, sloppy, slovo, sokoloff, sokolov, soloff, soloviev, solvay, solve, sulfa, sylph, sylva, sylvia, sylvio