| 1 | 甲 | 甲 | jiǎ | jia3 | first of the ten Heavenly Stems 十天干 ; (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 system (old); ancient Chinese compass point: 75° | | |
| 2 | 甲烷 | 甲烷 | jiǎ wán | jia3 wan2 | methane CH4 | | |
| 3 | 甲板 | 甲板 | jiǎ bǎn | jia3 ban3 | deck (of a boat etc) | | |
| 4 | 甲状腺 | 甲狀腺 | jiǎ zhuàng xiàn | jia3 zhuang4 xian4 | thyroid gland | | |
| 5 | 穿山甲 | 穿山甲 | chuān shān jiǎ | chuan1 shan1 jia3 | pangolin (Manis pentadactylata); scaly ant-eater | | |
| 6 | 保甲 | 保甲 | bǎo jiǎ | bao3 jia3 | 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 and jia are grouped in bao 保 | | |
| 7 | 邻苯二甲酸酯 | 鄰苯二甲酸酯 | lín běn èr jiǎ suān zhǐ | lin2 ben3 er4 jia3 suan1 zhi3 | phthalate (chemistry) | | |
| 8 | 对羟基苯甲酸酯 | 對羥基苯甲酸酯 | duì qiǎng jī běn jiǎ suān zhǐ | dui4 qiang3 ji1 ben3 jia3 suan1 zhi3 | paraben (chemistry) | | |
| 9 | 败鳞残甲 | 敗鱗殘甲 | bài lín cán jiǎ | bai4 lin2 can2 jia3 | disastrous defeat in battle (idiom) | | |
| 10 | 案兵束甲 | 案兵束甲 | àn bīng shù jiǎ | an4 bing1 shu4 jia3 | to rest weapons and loosen armor (idiom); to relax from fighting | | |
| 11 | 酚甲烷 | 酚甲烷 | fēn jiǎ wán | fen1 jia3 wan2 | (Tw) bisphenol A (BPA) | | |
| 12 | 飞行甲板 | 飛行甲板 | fēi xíng jiǎ bǎn | fei1 xing2 jia3 ban3 | flight deck | | |
| 13 | 二氯甲烷 | 二氯甲烷 | èr lǜ jiǎ wán | er4 lu:4 jia3 wan2 | dichloromethane | | |
| 14 | 案甲休兵 | 案甲休兵 | àn jiǎ xiū bīng | an4 jia3 xiu1 bing1 | to put down weapon and let soldiers rest (idiom); to relax from fighting | | |
| 15 | 二甲基砷酸 | 二甲基砷酸 | èr jiǎ jī shēn suān | er4 jia3 ji1 shen1 suan1 | dimethylarsenic acid (CH3)2AsO2H; cacodylic acid | | |
| 16 | 二甲苯 | 二甲苯 | èr jiǎ běn | er4 jia3 ben3 | xylene | | |
| 17 | 二甲 | 二甲 | èr jiǎ | er4 jia3 | 2nd rank of candidates who passed the imperial examination (i.e. 4th place and up) | | |
| 18 | 倒戈卸甲 | 倒戈卸甲 | dǎo gē xiè jiǎ | dao3 ge1 xie4 jia3 | to lay down arms | | |
| 19 | 保甲制度 | 保甲制度 | bǎo jiǎ zhì dù | bao3 jia3 zhi4 du4 | the Bao-Jia system (an administrative system organized on basis of households) | | |
| 20 | 大甲 | 大甲 | dà jiǎ | Da4 jia3 | Tachia town in Taichung county 台中县 , Taiwan | | |
| 21 | 卜甲 | 卜甲 | bǔ jiǎ | bu3 jia3 | oracle tortoise shell | | |
| 22 | 鳖甲 | 鱉甲 | biē jiǎ | bie1 jia3 | turtle shell | | |
| 23 | 鼻甲骨 | 鼻甲骨 | bí jiǎ gǔ | bi2 jia3 gu3 | turbinate; nasal concha | | |
| 24 | 苯甲酸钠 | 苯甲酸鈉 | běn jiǎ suān nà | ben3 jia3 suan1 na4 | sodium benzoate, E211 (a food preservative) | | |
| 25 | 苯甲酸 | 苯甲酸 | běn jiǎ suān | ben3 jia3 suan1 | benzoic acid C6H5COOH | | |