Suffocation rhymes with:
acidification, amplification, certification, cladification, clarification, classification, codification, decertification, deification, disqualification, diversification, edification, falsification, fortification, gasification, gratification, identification, intensification, justification, magnification, modification, notification, nullification, ossification, pacification, personification, pontification, purification, qualification, quantification, ramification, ratification, recertification, reclassification, rectification, reunification, russification, sanctification, saponification, unification, verification, vilification
Suffocation sounds like:
savastano, sebastian, sebastiana, sebastiane, sebastiani, subsection, substation, substitution, subsystem, supposition