Narc rhymes with:
arc, ark, barch, bark, barke, clark, clarke, dark, darke, demark, disembark, embark, harc, hark, harke, intermark, karch, lark, larke, marc, mark, marke, marque, mediamark, parc, park, parke, premark, quark, question-mark, remark, sark, shark, sparc, spark, starck, stark, starke, transpark
Narc sounds like:
narazaki, narciso, narcisse, narcissus, narco, narcos, nares, narjes, narrows, nars, nawrocki, nears, nemmers, nemours, neorx, nerco, nerice, nero's, neuroses, neurosis, new-years, new-york, new-york's, newark, newark's, newmark, niners, niners', niriko, noirs, nomura's, nora's, norcia, norco, noreco, noreiga, norex, norge, norick, noriega, noriega's, noriegas, nork, norkus, norris, norris's, norse, norsk, norske, norway's, norwich, nourish, nourishes, nourse, numeric, numerica, numerous, nurock, nurse, nurse's, nurses, nurses', nyers