| 1 | 机关 | 機關 | jī guān | ji1 guan1 | mechanism; gear; machine-operated; office; agency; organ; organization; establishment; institution; body; stratagem; scheme; intrigue; plot; trick; Classifiers: 个 | | |
| 2 | 机构 | 機構 | jī gòu | ji1 gou4 | mechanism; structure; organization; agency; institution; Classifiers: 所 | | |
| 3 | 机会 | 機會 | jī huì | ji1 hui4 | opportunity; chance; occasion; Classifiers: 个 | | |
| 4 | 机器 | 機器 | jī qì | ji1 qi4 | machine; Classifiers: 台 | | |
| 5 | 机械 | 機械 | jī xiè | ji1 xie4 | machine; machinery; mechanical; (old) cunning; scheming | | |
| 6 | 机 | 機 | jī | ji1 | machine; engine; opportunity; intention; aircraft; pivot; crucial point; flexible (quick-witted); organic; Classifiers: 台 ; surname Ji | | |
| 7 | 机能 | 機能 | jī néng | ji1 neng2 | function | | |
| 8 | 机器人 | 機器人 | jī qì rén | ji1 qi4 ren2 | mechanical person; robot; android | | |
| 9 | 机体 | 機體 | jī tǐ | ji1 ti3 | organism (biology); airframe (aeronautics) | | |
| 10 | 机械化 | 機械化 | jī xiè huà | ji1 xie4 hua4 | to mechanize | | |
| 11 | 机场 | 機場 | jī chǎng | ji1 chang3 | airport; airfield; (slang) service provider for Shadowsocks or similar software for circumventing Internet censorship; Classifiers: 家 ,处 | | |
| 12 | 机车 | 機車 | jī chē | ji1 che1 | locomotive; train engine car; scooter (Tw); (slang) (Tw) hard to get along with; a pain in the ass; damn!; crap! | | |
| 13 | 机智 | 機智 | jī zhì | ji1 zhi4 | mechanism; machine processed; machine made; mechanism; quick-witted; resourceful | | |
| 14 | 机理 | 機理 | jī lǐ | ji1 li3 | mechanism | | |
| 15 | 机遇 | 機遇 | jī yù | ji1 yu4 | opportunity; favorable circumstance; stroke of luck | | |
| 16 | 机枪 | 機槍 | jī qiāng | ji1 qiang1 | machine gun | | |
| 17 | 机会主义 | 機會主義 | jī huì zhǔ yì | ji1 hui4 zhu3 yi4 | opportunism; pragmatism | | |
| 18 | 机动 | 機動 | jī dòng | ji1 dong4 | locomotive; motorized; power-driven; adaptable; flexible (use, treatment, timing etc) | | |
| 19 | 机床 | 機床 | jī chuáng | ji1 chuang2 | machine tool; a lathe; Classifiers: 张 | | |
| 20 | 机舱 | 機艙 | jī cāng | ji1 cang1 | cabin of a plane | | |
| 21 | 机关枪 | 機關槍 | jī guān qiāng | ji1 guan1 qiang1 | also written 机枪 ; machine gun | | |
| 22 | 机加酒 | 機加酒 | jī jiā jiǔ | ji1 jia1 jiu3 | flight and hotel (travel package) (abbr. for 机票加酒店 ) | | |
| 23 | 机组 | 機組 | jī zǔ | ji1 zu3 | flight crew (on a plane); unit (apparatus) | | |
| 24 | 机场大厦 | 機場大廈 | jī chǎng dà shà | ji1 chang3 da4 sha4 | airport terminal | | |
| 25 | 机不可失,失不再来 | 機不可失,失不再來 | jī bù kě shī , shī bù zài lái | ji1 bu4 ke3 shi1 , shi1 bu4 zai4 lai2 | opportunity knocks but once (idiom) | | |