English
[1] [n] offspring; child; son [2] [n] seed; egg [3] the first of the twelve Terrestrial Branches [4] a rank of the nobility equivalent to a viscount [5] a designation used in speaking of or to a man in former times

Mandarin (hanyu pinyin)
zǐ zí cí

Cantonese (jyutping)
zi² ci⁴

Hakka (phonetic)
[Bao'an] tsu³ [Dongguan] tsu³ [Hong Kong] tsu³ [Kwangtung] tsii³ [Hailu] tsii³ [Siyan] tsii³ [Meixian] tsii³

Minnan/Taiwanese
chi2

Vietnamese
tí

Japanese
shi su

Korean
ca