Here's what rhymes with certificates.
Words that almost rhyme with certificates
significance siliceous piggishness jinrickshas jinrikshas willingness litigants fierceness spirituous spiritless priggishness griminess filminess coincidence precipitous ubiquitous iniquitous submissiveness serendipitous skittishness derisiveness insignificance permissiveness vindictiveness duplicitous cliquishness restrictiveness implicitness distinctiveness explicitness descriptiveness