Caremark's rhymes with:
earmarks, benchmark's, benchmarks, birthmarks, bismarck's, cellmark's, denmark's, deutschemark's, deutschemarks, earmarks, hallmark's, hallmarks, hartmarx, landmark's, landmarks, pathmark's, raymark's, southmark's, trademarks, watermarks, westmark's
Caremark's sounds like:
caremark, charmers, corners, coroner's, coroners, cramer's, cromer's