Subversion rhymes with:
aversion, conversion, diversion, inversion, perversion, reversion, version, aspersion, aversion, conversion, dispersion, diversion, excursion, immersion, incursion, inversion, persian, perversion, reversion, submersion, version
Subversion sounds like:
severson, shepperson, siverson, sovereign, sparacino, sparkman, sporkin, spurgeon, spurgin, suppression, syverson