Affluence rhymes with:
confluence, effluence, influence, confluence, effluence, influence, confluence, congruence, continuance, discontinuance, effluence, influence, issuance
Affluence sounds like:
abouhalima's, appalling, appealing, appelhans, appleans, appliance, appliances, appling, applying, avalanche, avalanches, avalon's, avellino's, awfulness