O'boyle rhymes with:
oboyle, boil, boyle, oboyle, boil, boyle, britoil, broil, coil, coile, coyle, croyle, doyle, embroil, foil, foyle, gatoil, guilfoil, hoyle, lukoil, moyl, moyle, oboyle, oil, oleoyl, recoil, roil, royle, soil, spoil, statoil, toil, uncoil
O'boyle sounds like:
obelia, oboyle, ofelia, offill, ofilia, opal, opel, ophelia, opiela, ople, oppel, oval, ovalle, ovule