| 同时 | tóng shí | at the same time; simultaneously |
| 不同 | bù tóng | different; distinct; not the same; not alike |
| 同志 | tóng zhì | comrade; homosexual (slang); CL:个 |
| 同 | tóng | like; same; similar; together; alike; with |
| 相同 | xiāng tóng | identical; same |
| 同样 | tóng yàng | same; equal; equivalent |
| 共同 | gòng tóng | common; joint; jointly; together; collaborative |
| 同一 | tóng yī | identical; the same |
| 同意 | tóng yì | to agree; to consent; to approve |
| 同学 | tóng xué | to study at the same school; fellow student; classmate; CL:位,个 |
| 同盟会 | Tóng méng huì | Tongmenghui, Sun Yat-sen's alliance for democracy, founded 1905, became the Guomindang 国民党 in 1912 |
| 合同 | hé tong | (business) contract; CL:个 |
| 同情 | tóng qíng | compassion; relent; sympathize; sympathy |
| 同胞 | tóng bāo | born of the same parents; sibling; fellow citizen; compatriot |
| 同上 | tóng shàng | as above; ditto; idem |
| 同期 | tóng qī | the corresponding time period (e.g. compare inflation now with the rate during the same month last year) |
| 同年 | tóng nián | the same year |
| 同盟 | tóng méng | alliance |
| 同类 | tóng lèi | similar; same type; alike |
| 如同 | rú tóng | like; as |
| 一同 | yī tóng | along; together |
| 连同 | lián tóng | together with; along with |
| 同等 | tóng děng | equal to; having the same social class or status |
| 同心 | tóng xīn | with common wishes; spirit of cooperation; concentric; Tongxin county in Wuzhong 吴忠, Ningxia |
| 大同 | Dà tóng | Datong or Great community in neo-Confucian philosophy, sim. New Jerusalem; Datong or Tatung district of Taipei City 台北市, Taiwan; Datong prefecture level city in Shanxi 山西; Datong or Tatung township in Yilan county 宜兰县, Taiwan |
| 共同体 | gòng tóng tǐ | community |
| 等同 | děng tóng | to equate; equal to |
| 同行 | tóng háng | person of the same profession; of the same trade, occupation or industry |
| 同治 | Tóng zhì | reign name of Qing emperor (1861-1875) |
| 同行 | tóng xíng | journey together |
| 赞同 | zàn tóng | to approve of; to endorse; (vote) in favor; trad. also written 贊同 |
| 会同 | huì tóng | to handle sth jointly; Huitong county in Huaihua 怀化, Hunan |
| 陪同 | péi tóng | accompany |
| 协同 | xié tóng | to cooperate; in coordination with; coordinated; collaborate; collaboration; collaborative |
| 同性 | tóng xìng | same nature; homosexual |
| 同步 | tóng bù | synchronous; to synchronize; to keep step with |
| 同伴 | tóng bàn | companion; comrade; fellow |
| 同位素 | tóng wèi sù | isotope |
| 同人 | tóng rén | colleagues; fellowship (among people) |
| 同事 | tóng shì | colleague; co-worker; CL:个,位 |
| 胡同 | hú tòng | lane; alley; CL:条 |
| 随同 | suí tóng | accompanying |
| 谭嗣同 | Tán Sì tóng | Tan Sitong (1865-1898), Qing writer and politician, one of the Six Gentlemen Martyrs 戊戌六君子 of the unsuccessful reform movement of 1898 |
| 同化 | tóng huà | assimilation (cultural, digestive, phonemic etc) |
| 异同 | yì tóng | comparison; differences and similarities |
| 同轴电缆 | tóng zhóu diàn lǎn | coaxial cable |
| 同乡 | tóng xiāng | person from the same village, town, or province |
| 混同 | hùn tóng | to mix up; to confuse one thing with another |
| 同居 | tóng jū | to live together |
| 同心同德 | tóng xīn tóng dé | of one mind (idiom) |
