理
| Level 4 vocabulary | ||
| 料理 | (n,vs) cooking/ cookery/ cuisine/ (P) | |
| Level 3 vocabulary | ||
| 地理 | (n) geography/ (P) | |
| 無理 | (adj-na,n,vs) unreasonable/ impossible/ overdoing/ (P) | |
| 理由 | (n) reason/ pretext/ motive/ (P) | |
| Level 2 vocabulary | ||
| 管理 | (n,vs) control/ management (e.g. of a business)/ (P) | |
| 原理 | (n) principle/ theory/ fundamental truth/ (P) | |
| 合理 | (n) rational/ (P) | |
| 修理 | (n,vs) repairing/ mending/ (P) | |
| 処理 | (n,vs) processing/ dealing with/ treatment/ disposition/ disposal/ (P) | |
| 心理 | (n) mentality/ (P) | |
| 整理 | (n,vs) sorting/ arrangement/ adjustment/ regulation/ (P) | |
| 総理大臣 | Prime Minister/ (P) | |
| 代理 | (n) representation/ agency/ proxy/ deputy/ agent/ attorney/ substitute/ alternate/ acting (principal, etc.)/ | |
| 物理 | (n) physics/ (P) | |
| 理科 | (n) science/ (P) | |
| 理解 | (n,vs) understanding/ comprehension/ (P) | |
| 理想 | (n) ideal/ (P) | |
| Level 1 vocabulary | ||
| 義理 | (n,adj-no) duty/ sense of duty/ honor/ decency/ courtesy/ debt of gratitude/ social obligation/ (P) | |
| 真理 | (n) truth/ (P) | |
| 推理 | (n) reasoning/ inference/ mystery or detective genre (movie, novel, etc.)/ (P) | |
| 生理 | (n) physiology/ menses/ (P) | |
| 調理 | (n,vs) cooking/ (P) | |
| 理屈 | (n) theory/ reason/ (P) | |
| 理性 | (n) reason/ sense/ (P) | |
| 理論 | (n) theory/ (P) | |
| 論理 | (n) logic/ (P) | |