deck (of a ship or boat)

armor; body armor and helmet

vehicle armor

beetle

armored car; CL:輛|辆[liang4]

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°

nail polish

methane CH4

first year of the sixty-year cycle (where each year is numbered with one of the 10 heavenly stems 天干[tian1 gan1] and one of the 12 earthly branches 地支[di4 zhi1]); the sixty-year cycle

corset; sockpuppet (Internet slang); vest (dialect)

manicure

armor

manicure and-or pedicure

mecha (human-operated robots in Japanese manga)

(anatomy) thyroid gland

formaldehyde (HCHO)

the Beatles (1960s UK pop group)

beetle

1st rank or top three candidates who passed the imperial examination (i.e. 狀元|状元[zhuang4 yuan2], 榜眼[bang3 yan3], and 探花[tan4 hua1], respectively)

3rd rank of candidates who passed the imperial examination; (hospital ranking) A-grade tertiary (the highest level) (abbr. for 三級甲等|三级甲等[san1 ji2 jia3 deng3])

2nd rank of candidates who passed the imperial examination (i.e. 4th place and up)

historical communal administrative and self-defence system created during the Song Dynasty and revived during the Republican Era, in which households are grouped in jia 甲[jia3] and jia are grouped in bao 保[bao3]

(place name)

oracle tortoise shell

Serie A, the top division of the Italian football league system

weapons and armor

armor; bulletproof vest

to don armor

somebody; certain individual

first two of the ten Heavenly Stems 十天干[shi2 tian1 gan1]

hyperthyroidism (abbr. for 甲狀腺功能亢進|甲状腺功能亢进[jia3 zhuang4 xian4 gong1 neng2 kang4 jin4])

variant of 甲胄[jia3 zhou4]

hypothyroidism (abbr. for 甲狀腺功能減退|甲状腺功能减退[jia3 zhuang4 xian4 gong1 neng2 jian3 tui4])

thirty-first year A7 of the 60 year cycle, e.g. 1954 or 2014

type A; type I; alpha-

methyl group (chemistry)

carapace; crust; outer shell; also pr. [jia3 ke2]

51st year A3 of the 60 year cycle, e.g. 1974 or 2034

eleventh year A11 of the 60 year cycle, e.g. 1994 or 2054

party A (in a contract) (cf. 乙方[yi3 fang1], party B)

type A influenza (abbr. for 甲型流感[jia3 xing2 liu2 gan3]); (in the context of the 2009 pandemic) H1N1 influenza

21st year A9 of the 60 year cycle, e.g. 2004 or 2064

residence of a noble; top candidate in the imperial examinations

grade A; first-class

gentian violet

first rate; top class; excellent

hepatitis A

armor

(chemistry) methylamine