Ostrem rhymes with:
antrim, ahlgrim, antrim, knierim, lockrem, norem, orem, acronym, ahlgrim, anglim, antrim, beachem, chaim, dahlem, dershem, eidem, exim, fillingim, ganem, ganim, gillem, goyim, hapoalim, hashem, hashim, hasidim, hatem, homonym, jachim, joachim, jochem, jochim, ketchem, knierim, laflamme, lathem, leathem, lockrem, maxxim, mechem, mellem, meriam, mitchem, naim, nissim, norem, odem, orem, parkinsonism, salemme, salim, sephardim, solem, tatem, wasem, withem, yochim
Ostrem sounds like:
octahedron, osterman, ostermann, ostrom, ostrum