| 思想 | sī xiǎng | thought; thinking; idea; ideology; CL:个 |
| 思 | sī | to think; to consider |
| 意思 | yì si | idea; opinion; meaning; wish; desire; CL:个 |
| 思维 | sī wéi | (line of) thought; thinking |
| 马克思主义 | mǎ kè sī zhǔ yì | Marxism |
| 思考 | sī kǎo | to reflect on; to ponder over |
| 思潮 | sī cháo | tide of thought; way of thinking characteristic of a historical period; Zeitgeist |
| 思想家 | sī xiǎng jiā | a thinker |
| 思索 | sī suǒ | think deeply; ponder |
| 沉思 | chén sī | contemplate; contemplation; meditation; ponder |
| 毛泽东思想 | máo zé dōng sī xiǎng | Mao Zedong Thought; Maoism |
| 不好意思 | bù hǎo yì si | to feel embarrassed; to find it embarrassing; to be sorry (for inconveniencing sb) |
| 构思 | gòu sī | to design; to plot; to plan out; to compose; to draw a mental sketch; conception; plan; idea; composition |
| 心思 | xīn si | thought; idea; to think hard about sth; inclination; mood |
| 思想体系 | sī xiǎng tǐ xì | system of thought; ideology |
| 有意思 | yǒu yì si | interesting; meaningful; enjoyable; fun |
| 深思 | shēn sī | to ponder; to consider |
| 马克思 | Mǎ kè sī | Marx (name); Groucho Marx (the star of Duck Soup, 1933); Karl Marx (1818-1883), German socialist philosopher, political activist and founder of Marxism |
| 思路 | sī lù | train of thought; thinking; reason; reasoning |
| 思念 | sī niàn | think of; long for; miss |
| 不可思议 | bù kě sī yì | inconceivable (idiom); unimaginable; unfathomable |
| 思量 | sī liang | to reckon; to consider; to turn over in one's mind |
| 思绪 | sī xù | train of thought; emotional state; mood; feeling |
| 深思熟虑 | shēn sī shú lǜ | mature reflection; after careful deliberations |
| 胡思乱想 | hú sī luàn xiǎng | to indulge in flights of fancy (idiom); to let one's imagination run wild; to have a bee in one's bonnet; unrealistic utopian fantasy |
| 忆苦思甜 | yì kǔ sī tián | to view one's past as miserable and one's present as happy (idiom) |
| 抽象思维 | chōu xiàng sī wéi | abstract thought; logical thinking |
| 好意思 | hǎo yì si | to have the nerve; what a cheek!; to feel no shame; to overcome the shame; (is it) proper? (rhetorical question) |
| 思虑 | sī lǜ | to think sth through; to consider carefully |
| 顾名思义 | gù míng sī yì | as the name implies |
| 小意思 | xiǎo yì si | small token; mere trifle (used of one's gifts) |
| 上思 | Shàng sī | Shangxi county in Fangchenggang 防城港, Guangxi |
| 思忖 | sī cǔn | to ponder; to reckon; to turn sth over in one's mind |
| 贾思勰 | Jiǎ Sī xié | Jia Sixie, sixth century writer and author of agricultural encyclopedia Essential skill to benefit the people 齐民要术 |
| 挖空心思 | wā kōng xīn si | to dig for thoughts (idiom); to search everything for an answer; to rack one's brains |
| 成吉思汗 | Chéng jí sī hàn | Genghis Khan (1162-1227) |
| 饮水思源 | yǐn shuǐ sī yuán | lit. when you drink water, think of its source (idiom); gratitude for blessings and their well-spring; Don't forget where your happiness come from.; Be grateful for all your blessings! |
| 反思 | fǎn sī | to think back over sth; to review; to revisit; to rethink; reflection; reassessment |
| 思前想后 | sī qián xiǎng hòu | to consider past cause and future effect (idiom); to think over the past and future; to ponder over reasons and connection |
| 没意思 | méi yì si | boring; of no interest |
| 一门心思 | yī mén xīn si | to set one’s heart on sth (idiom) |
| 三思而后行 | sān sī ér hòu xíng | think again and again before acting (idiom); consider carefully in advance |
| 三思而行 | sān sī ér xíng | think three times then go (idiom); don't act before you've thought it through carefully |
| 上思县 | Shàng sī xiàn | Shangxi county in Fangchenggang 防城港, Guangxi |
| 不假思索 | bù jiǎ sī suǒ | to act without taking time to think (idiom); to react instantly; to fire from the hip |
| 不加思索 | bù jiā sī suǒ | see 不假思索 |
| 伊思迈尔 | Yī sī mài ěr | Ismail (name); Shāh Ismāil I (1487-1524), founder of Persian Safavid dynasty, reigned 1501-1524 |
| 儒家思想 | Rú jiā sī xiǎng | Confucian thoughts; the thinking of the Confucian school |
| 冥思苦想 | míng sī kǔ xiǎng | to consider from all angles (idiom); to think hard; to rack one's brains |
| 冥思苦索 | míng sī kǔ suǒ | to rack one’s innermost brains (idiom) |
