Burnett's rhymes with:
cabernets, cabernets, barnett's, brunettes, cabernets, coronets, falconets, luncheonettes, nets, netz
Burnett's sounds like:
barents, barnett's, baronets, barrientes, barrientez, barrientos, befriends, behrends, berends, bermudas, bermudes, bermudez, birmid's, boyfriends, brand's, brandeis, brandes, brandis, brandish, brandishes, brando's, brands, brands', brands's, branitzky, brenda's, brents, brintec, bromides, bronte's, brountas, brownouts, brundage, brundidge, brundige, brunettes, bruntz, burundi's