Mammoth Uncensored Word List:
26 words ending with ro, 8 letters long

antihero armigero autogiro autogyro buckayro cabestro cavalero cilantro corocoro cruzeiro encierro guacharo habanero huaquero leggiero miromiro nonmetro paderero paterero pederero ranchero riroriro sombrero superpro tapadero whakairo