Correlations rhymes with:
accumulations, appellations, calculations, cancellations, circulations, compilations, congratulations, consolations, constellation's, constellations, inoculations, installations, manipulations, miscalculations, mutilations, oscillations, ovulations, populations, regulations, revelations, speculations, stipulations, strangulations, tabulations, tribulations, violations
Correlations sounds like:
carloading, carloadings, carlton's, charlatans, cheerleading, correlating