Macarthur rhymes with:
mcarthur, mcarthur, mcarthur, arthur, mcarthur, port-arthur, arthur, mcarthur, port-arthur, altherr, arthur, auther, author, coauthor, ether, gaither, guenther, gunther, luther, mahathir, mathur, mcarthur, panther, port-arthur, rother, ruether, ruther, sathre, uther, walther, winterthur, winther
Macarthur sounds like:
magruder, mcarthur, mcartor, mccarter, mcgruder, mcwherter, mcwhirter, mcwhorter, migratory