1second of the ten Heavenly Stems 十天干
2second in order
3ethyl
4bent
5winding
6radical in Chinese characters (Kangxi radical 5)
7ancient Chinese compass point: 105°
8letter "B" or Roman "II" in list "A, B, C", or "I, II, III" etc
9second party (in legal contract, usually 乙方, as opposed to 甲方)
Examples
jiǎ甲zhī之mì蜜táng糖，yǐ乙zhī之pī砒shuāng霜。
甲之蜜糖，乙之砒霜。
One man's meat is another man's poison.
对乙酰氨基酚是一种退烧药。
Acetaminophen is an antipyretic.