指南车

指南车	zhǐ nán chē	a mechanical compass invented by Zu Chongzhi 祖冲之
指	zhǐ	finger / to point at or to / to indicate or refer to / to depend on / to count on / (of hair) to stand on end
指南	zhǐ nán	to guide / guidebook
南	Nán	surname Nan
南	nā	used in 南无 / Taiwan pr. [na2]
南	nán	south
车	Chē	surname Che
车	chē	car / vehicle / CL:辆 / machine / to shape with a lathe / Kangxi radical 159
车	jū	war chariot (archaic) / rook (in Chinese chess) / rook (in chess)