1. (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[wu3 deng3 jue2 wei4]; ancient Chinese compass point: 0° (north); subsidiary; subordinate; sub-
2. (zi) (noun suffix)

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