Subzero rhymes with:
zero, argiro, aufiero, biro, carriero, casimiro, deniro, dipiero, dipierro, dipirro, ero, fierro, guerriero, hero, hiro, kaneshiro, liro, masahiro, miro, miyashiro, morihiro, moruhiro, nero, niro, oshiro, pierro, piro, pirro, ramiro, ruggiero, santarsiero, sapiro, schiro, shapero, shapiro, shoichiro, spiro, tamashiro, tashiro, tesoriero, yamashiro, yoshiro, zero
Subzero sounds like:
savagery, schabacker, siefker, spacer, speaker, specker, speicher, speiser, spicer, spicher, spieker, spiker, spizzirri, spyker, svizzera