Catharines rhymes with:
catherine's, catherines, catherine's, catherines, catherine's, catherines, ahrens, aldrin's, catherine's, catherines, clarins, corinn's, dobrins, kerins, kobrin's, lawrenz, perrins
Catharines sounds like:
catering, catherine's, catherines, cdroms, chattering, cisterns, citron's, coauthoring, cutworms