Contaminants rhymes with:
determinants, consonants, continent's, continents, covenants, determinants, complainants, components, consonants, continent's, continents, covenants, determinants, exponents, lieutenants, opponent's, opponents, opponents', pennants, proponents, remnants, subcontinents, tenant's, tenants, tenants'
Contaminants sounds like:
cohentannoudji, comandantes, commandments, commitments, condiments, contaminates, contends, contentious, contents, continent's, continents