Arc rhymes with:
ark, barch, bark, barke, clark, clarke, dark, darke, demark, disembark, embark, harc, hark, harke, intermark, karch, lark, larke, marc, mark, marke, marque, mediamark, narc, parc, park, parke, premark, quark, question-mark, remark, sark, shark, sparc, spark, starck, stark, starke, transpark
Arc sounds like:
air's, airco, aircoa, aires, airgas, airs, airway's, airways, airways', airways's, araiza, arakaki, arakawa, araki, araskog, araujo, arce, arceo, arch, archaic, arches, archey, archie, archway, arco, arco's, arcos, arcs, area's, areas, arechiga, ares, argo, argo's, argosy, argue, argues, arguijo, argus, arias, arias's, aric, arico, aries, aris, arise, arises, ariza, arjo, ark, arko, arkose, arocha, arocho, aros, arose, arouse, arouses, arrays, arrearage, arrearages, arrears, arriaga, arrick, arrigo, arris, arrow's, arrows, arroyo's, arx, aurich, ayars, ayer's, ayers, ayres