C
| 大同语 | 汉语 | 英语 |
| Cado | 乍得 | Chad |
| cagrena | 悲伤的 | sad |
| calenji | 挑战 | challenge |
| cambelano | 朝臣 | chamberlain |
| cambro | 房间 | chamber, room |
| camo | 羚羊 | chamois |
| campano | 香槟酒 | champagne |
| campio | 冠军 | champion |
| canso | 机会 | chance |
| canelo | 频道 | channel |
| canji | 改变 | change |
| canso | 机会 | chance |
| canto | 颂歌 | chant |
| capelo | 小教堂 | chapel |
| capto | 章 | chapter |
| car | 因为 | because |
| cario | 双轮马车 | chariot |
| carito | 施舍,博爱 | charity |
| carji | 充电 | to charge |
| carjo | 负荷,负担 | charge, burden |
| carlatano | 走江湖卖药者 | charlatan |
| carma | 迷人的 | charm |
| carto | 宪章 | charter |
| casi | 追赶 | chase |
| casta | 贞洁的 | chaste |
| cati | 聊天 | chat |
| cateyo | 聊天室 | chat room |
| cedi | 让步 | concede |
| cefa | 主要的 | chief |
| cefoficeyo | 总部 | headquarters |
| ceki | 检查 | check(v.) |
| ceko | 支票 | check(n.) |
| cekumo | 盲肠 | caecum |
| celebri | 庆祝 | celebrate |
| celo | 天空 | sky |
| cela | 天空的 | celestial |
| celvolbo | 苍穹 | firmament |
| Celsia | 摄氏的 | Celsius |
| cemento | 水泥 | cement |
| cemizo | 女式衬衫 | chemise |
| cendo | 一分钱 | cent |
| ceno | 链 | chain |
| censo | 人口普查 | census |
| cent | 百 | hundred |
| yercento | 世纪 | century |
| centimetro | 厘米 | centimeter |
| centra | 中央的 | central |
| cepo | 洋葱 | onion |
| ceramiko | 陶器 | ceramics |
| cerbo | 头脑 | brain |
| cerbumi | 动脑筋 | think hard |
| cerebelo | 小脑 | cerebellum |
| ceremono | 仪式 | ceremony |
| cerio | 樱桃 | cherry |
| cerko | 棺材 | coffin |
| cerpi | 舀 | ladle(v.) |
| cerpilo | 勺子 | ladle(n.) |
| cerubo | 小天使 | cherub |
| cerviko | 子宫颈 | cervix |
| cervo | 鹿 | deer, stag |
| certa | 确定的 | certain |
| cesi | 停止 | cease |
| cestnuto | 栗子 | chestnut |
| cetera | 其余的 | other |
| cidi | 杀害 | kill |
| cifono | 褴褛 | shred |
| Cilio | 智利 | Chile |
| cimpanzo | 黑猩猩 | chimpanzee |
| Cino | 中国 | China |
| cinano | 中国人 | Chinese |
| ci | 这(表近处) | this |
| cia | 每样的 | every |
| cial | 所有原因 | all reason |
| ciam | 永远 | forever |
| cie | 到处 | everywhere |
| ciel | 所有方式 | everyway |
| cifro | 密码 | cipher |
| cikado | 蝉 | cicada |
| cikatro | 伤痕 | cicatrices |
| ciklono | 旋风 | cyclone |
| ciklotrono | 回旋加速器 | cyclotron |
| cilindro | 圆柱体 | cylinder |
| cilio | 睫毛 | cilia |
| cimpanzo | 黑猩猩 | chimpanzee |
| cindro | 灰烬 | cinder |
| cinika | 愤世嫉俗的 | cynical |
| cio | 所有 | all |
| ciom | 一切 | everything |
| cipa | 便宜的 | cheap |
| cipreso | 柏树 | cypress |
| cirklo | 圆 | circle |
| cirko | 马戏团 | circus |
| cirkuli | 循环 | circulate |
| cirkum | 在...周围 | around |
| cirkumi | 围绕 | surround |
| cirkumo | 环境 | surrounding |
| cirkumurbo | 郊区 | suburb |
| cirkumcizi | 行割礼 | circumcise |
| cirkumflekso | 字上符号 | circumflex |
| cirkumskribi | 划界线 | circumscribe |
| cirkumstanso | 情况 | circumstance |
| cirkwito | 电路 | circuit |
| ciroso | 硬化 | cirrhosis |
| cirpi | 唧唧叫 | chirp |
| cisterno | 水池 | cistern |
| cisto | 囊 | cyst |
| citi | 引用 | cite |
| ciu | 每人 | everybody |
| ciufoye | 总是,每次 | always |
| cius | 每人的 | everyone's |
| civila | 民用的 | civil |
| civilizo | 文明 | civilization |
| cizi | 凿 | chisel(v.) |
| cizilo | 凿子 | chisel(n.) |
| coki | 窒息,噎住 | choke |
| cokolo | 巧克力 | chocolate |
| copi | 剁 | chop |
| coro | 杂务 | chore |
| cu | 吗 | question adverb |