| term | pronunciation | English |
|---|
| 精神 | せいしん | spirit |
| 精々 | せいぜい | at the most, at best, to the utmost, as much |
| 丹精 | たんせい | working earnestly, sincerity, diligence, effort, pains |
| 体外受精 | たいがいじゅせい | in vitro fertilization, in vitro fertilisation |
| 受精卵 | じゅせいらん | fertilized eggs, fertilised eggs |
| 授精 | じゅせい | fertilization, fertilisation, impregnation, pollination |
| 精 | せい | spirit; energy; fine details; semen |
| 精励 | せいれい | diligence, industry |
| 精子 | せいし | sperm |
| 精密 | せいみつ | precise, exact, detailed, minute, close |
| 精巧 | せいこう | elaborate, delicate, exquisite |
| 精度 | せいど | precision, accuracy |
| 精彩 | せいさい | brilliance, vividness |
| 精液 | せいえき | semen |
| 精神分析 | せいしんぶんせき | psychoanalysis |
| 精神的 | せいしんてき | mental, emotional |
| 精神薄弱 | せいしんはくじゃく | mental retardation, mentally retarded |
| 精神鑑定 | せいしんかんてい | psychiatric examination |
| 精神障害 | せいしんしょうがい | mental disorder |
| 精製 | せいせい | purification |
| 精鋭 | せいえい | elite, picked, powerful, efficient |
| 精錬 | せいれん | refining, smelting, tempering |
| 精錬所 | せいれんしょ, せいれんじょ | refinery, smelting works |
| 精霊 | しょうりょう | spirit of the deceased |
| 精髄 | せいずい | essence, kernel, spirit, pith |
| 精魂 | せいこん | soul, spirit |