| 暗 | àn | to close (a door); to eclipse; muddled; stupid; ignorantdark; gloomy; hidden; secret; obscure; in the dark |
| 黑暗 | hēi àn | dark; darkly; darkness |
| 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 |
| 阴暗 | yīn àn | dim; dark; gloomy; somber |
| 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 |
| 昏暗 | hūn àn | dusky |
| 暗室 | àn shì | darkroom |
| 暗地里 | àn dì li | secretly; inwardly; on the sly |
| 暗自 | àn zì | inwardly; to oneself; secretly |
| 灰暗 | huī àn | gray and dark; murky |
| 暗号 | àn hào | secret signal (sign); countersign; cipher |
| 幽暗 | yōu àn | gloom |
| 暗笑 | àn xiào | laugh in (up) one's sleeve; snigger; snicker |
| 晦暗 | huì àn | dark and gloomy |
| 暗害 | àn hài | kill secretly; stab in the back |
| 名重识暗 | míng zhòng shí àn | of great reputation but shallow in knowledge (idiom) |
| 明人不做暗事 | míng rén bù zuò àn shì | The honest person does nothing underhand (idiom).; fig. Do what you want to do openly and without dissimulation. |
明修栈道，
暗渡陈仓 | míng xiū zhàn dào ,
àn dù Chén cāng | lit. repair the plank road by day while 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 |
| 明察暗访 | míng chá àn fǎng | open enquiries and secret search (idiom); to investigate openly and in secret; taking information from all sides |
| 明岗暗哨 | míng gǎng àn shào | both covert and undercover (officers) keeping watch (idiom) |
| 明查暗访 | míng chá àn fǎng | open enquiries and secret search (idiom); to investigate openly and in secret; taking information from all sides |
明枪好躲，
暗箭难防 | míng qiāng hǎo duǒ ,
àn jiàn nán fáng | lit. easy to dodge the spear in the open, hard to avoid a stab in the dark (idiom); it is hard to guard against secret conspiracies |
明枪易躲，
暗箭难防 | míng qiāng yì duǒ ,
àn jiàn nán fáng | lit. easy to dodge the spear in the open, hard to avoid a stab in the dark (idiom); it is hard to guard against secret conspiracies |
| 明争暗斗 | míng zhēng àn dòu | struggling in the light and fighting in the dark (idiom); fig. intriguing against each other; locked in constant strife |
| 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 |
