Calmark rhymes with:
hallmark, cellmark, chilmark, hallmark, avmark, benchmark, bevmark, birthmark, bismarck, bismark, caremark, cellmark, chilmark, denmark, deutschemark, earmark, equimark, esmark, furmark, goldmark, hallmark, hashmark, hundertmark, landmark, lexmark, lindmark, lundmark, newmark, oakmark, pathmark, pockmark, postmark, raymark, sanmark, southmark, torchmark, trademark, transmark, vandemark, vandermark, watermark, westmarc, westmark
Calmark sounds like:
cellmark, cellmark's, chalmers, chilmark, cleaners