母子

母子	mǔ zǐ	mother and child / parent and subsidiary (companies) / principal and interest
母	mǔ	mother / elderly female relative / origin / source / (of animals) female
子	zǐ	son / child / seed / egg / small thing / 1st earthly branch: 11 p.m.-1 a.m., midnight, 11th solar month (7th December to 5th January), year of the rat / viscount, fourth of five orders of nobility 五等爵位 / ancient Chinese compass point: 0° (north) / subsidiary; subordinate; (prefix) sub-
子	zi	(noun suffix)