甲

Meaning

• first of the ten Heavenly Stems 十天干[shi2 tian1 gan1]
• (used for an unspecified person or thing)
• first (in a list, as a party to a contract etc)
• letter "A" or roman "I" in list "A, B, C", or "I, II, III" etc
• armor plating
• shell or carapace
• (of the fingers or toes) nail
• bladed leather or metal armor (old)
• ranking system used in the Imperial examinations (old)
• civil administration unit in the baojia 保甲[bao3 jia3] system (old)
• ancient Chinese compass point: 75°