| 暗 | àn | to close (a door); to eclipse; muddled; stupid; ignorantdark; gloomy; hidden; secret; obscure; in the dark |
| 暗示 | àn shì | to hint; to suggest; suggestion; hint |
| 暗中 | àn zhōng | in the dark; in secret; on the sly; surreptitiously |
| 暗暗 | àn àn | secretly; inwardly |
| 暗杀 | àn shā | assassinate |
| 暗淡 | àn dàn | dim; faint; dismal; gloomy |
| 暗礁 | àn jiāo | submerged reef (rock) |
| 暗流 | àn liú | undercurrent |
| 暗藏 | àn cáng | hide; conceal |
| 暗室 | àn shì | darkroom |
| 暗地里 | àn dì li | secretly; inwardly; on the sly |
| 暗自 | àn zì | inwardly; to oneself; secretly |
| 暗号 | àn hào | secret signal (sign); countersign; cipher |
| 暗笑 | àn xiào | laugh in (up) one's sleeve; snigger; snicker |
| 暗害 | àn hài | kill secretly; stab in the back |
| 暗中监视 | àn zhōng jiān shì | to monitor secretly; to spy on |
| 暗井 | àn jǐng | blind shaft; winze |
| 暗伤 | àn shāng | internal (invisible) injury (damage) |
| 暗光鸟 | àn guāng niǎo | black-crowned night heron (Taiwan) |
| 暗公鸟 | àn gōng niǎo | black-crowned night heron (Taiwan) |
| 暗合 | àn hé | to agree implicitly; of one mind; views coincide without a word exchanged |
| 暗喜 | àn xǐ | hidden smile; smirk; to rejoice covertly; secret satisfaction concerning one's evil plans |
| 暗喻 | àn yù | metaphor |
| 暗器 | àn qì | concealed weapon |
| 暗地 | àn dì | secretly; inwardly |
| 暗堡 | àn bǎo | bunker |
| 暗娼 | àn chāng | unlicensed (unregistered) prostitute |
| 暗察明访 | àn chá míng fǎng | open enquiries and secret search (idiom); to investigate openly and in secret; taking information from all sides |
| 暗影 | àn yǐng | shadow; umbra |
| 暗想 | àn xiǎng | think to oneself |
| 暗恋 | àn liàn | to be secretly in love |
| 暗指 | àn zhǐ | to hint at; to imply; sth hidden |
| 暗探 | àn tàn | secret agent; detective |
| 暗星云 | àn xīng yún | dark nebula (visible as a shadow, absorbing light from behind); absorption nebula |
| 暗昧 | àn mèi | obscure; remaining unenlightened |
| 暗河 | àn hé | underground river |
| 暗渡陈仓 | àn dù Chén cāng | secretly crossing the Wei river 渭河 at Chencang (idiom, refers to a stratagem used by Liu Bang 刘邦 in 206 BC against Xiangyu 项羽 of Chu); fig. fein one thing while doing another; to cheat under cover of a diversion |
| 暗潮 | àn cháo | undercurrent |
| 暗滩 | àn tān | hidden shoal |
| 暗灰色 | àn huī sè | dark gray |
| 暗无天日 | àn wú tiān rì | all black, no daylight (idiom); a world without justice |
| 暗疾 | àn jí | unmentionable disease; a disease one is ashamed of |
| 暗盒 | àn hé | magazine; cassette |
| 暗算 | àn suàn | to plot against |
| 暗箭 | àn jiàn | attack by a hidden enemy; a stab in the back |
| 暗箱 | àn xiāng | camera bellows; camera obscura |
| 暗箱操作 | àn xiāng cāo zuò | to do something secretly; earmark (politics) |
| 暗紫色 | àn zǐ sè | dark purple |
| 暗线光谱 | àn xiàn guāng pǔ | dark-line spectrum |
| 暗花儿 | àn huār | veiled design incised in porcelain or woven in fabric |
