| 思想 | sī xiǎng | thought; thinking; idea; ideology; Classifiers: 个 | |
| 马克思主义 | mǎ kè sī zhǔ yì | Marxism | |
| 思考 | sī kǎo | to reflect on; to ponder over | |
| 思维 | sī wéi | (line of) thought; thinking | |
| 思路 | sī lù | train of thought; thinking; reason; reasoning |
| 1 | He was lost in thought. | |
| 2 | This book is very interesting. | |
| 3 | Go away! I need to think alone. | |
| 4 | He repeatedly thought about it for a long time. | |
| 5 | She has a strong lateral thinking ability. |
