Character Contained In References Comments
Simplified Traditional Ancient forms Archaic forms
traditional form

Variants
Phonetic
Semantic
Apparent
Mandarin
si4
English
Definitions
6th earthly branch; 9-11 a.m.; 6th terrestrial branch; the hours from 9 to 11; the sixth earthly branch
Etymology
Notes
Pictograph: a fetus (shuowen says it is a snake – very similar to archaic form of 虫): compare 了