- 龙门石窟 lóngménshíkū Longmen GrottoesThe Longmen Grottoes, a UNESCO World Heritage site consisting of thousands of Buddhist statues carved into the limestone cliffs near [[洛阳|洛陽|luo4 yang2]] in Henan Province. Also known as the [[伊阙石窟|伊闕石窟|yi1 que4 shi2 ku1]].
- 龙门阵 lóngménzhèn casual talkchatting; casual talk or stories; often used with [[摆|擺|bai3]]
- 摆龙门阵 bǎilóngménzhèn to chat(dialect) to chat; to gossip; to tell stories or spin a yarn, especially for a long time
- 鲤鱼跳龙门 lǐyútiàolóngmén to achieve great successLiterally meaning "the carp leaps over the Dragon Gate," this idiom describes making a sudden, significant advance in one's career or status, such as passing a high-level exam or getting a big break.
- 龙门山 lóngménshān Mount Longmen (Sichuan)A mountain range and active geological fault line forming the northwest boundary of the Sichuan basin
- 龙门吊 lóngméndiào gantry cranelarge-scale lifting machine used for heavy loads that moves back and forth along a set of tracks, named for its gate-like structure
- 龙门县 lóngménxiàn Longmen CountyLongmen, a county in Huizhou City, Guangdong Province
- 登龙门 dēnglóngmén to win sudden successto pass the imperial examinations or rise from low status to a position of fame and wealth; based on the legend of the carp jumping over the Dragon Gate
- 龙门刨 lóngménbào double housing planerA large industrial machine tool used for surfacing large pieces of metal, characterized by a frame consisting of two vertical columns and a crossbeam resembling a gate.
- 龙门山断层 lóngménshānduàncéng Longmenshan faultA tectonically active thrust fault line at the northwest boundary of the Sichuan basin
- 龙门断层 lóngménduàncéng Longmenshan fault linetectonically active thrust fault line at the northwest boundary of the Sichuan basin
- 龙门核能发电厂 lóngménhénéngfādiànchǎng Lungmen Nuclear Power Plantfourth nuclear power plant in Taiwan, located in Gongliao District, New Taipei City
- 龙门造像 lóngménzàoxiàng Longmen stone carvingsThe stone Buddhist statues and relief sculptures found in the [[龙门石窟|龍門石窟|long2 men2 shi2 ku1]] near Luoyang, mostly dating from the Northern Wei period.
- 曝腮龙门 pùsāilóngmén to fail an examto fail an examination or suffer a major career setback; literally to expose one's gills at the Dragon Gate
- 合龙门 hélóngmén to close the gapto complete the final section of a dam, bridge, or dike during construction when work proceeds from both ends towards the middle
- 曝鳃龙门 pùsāilóngmén to fail an examto fail an imperial examination or suffer a major career setback; literally to expose one's gills at the Dragon Gate
- 跳龙门 tiàolóngmén to pass the civil-service examsto pass the highest imperial examinations; also used as a metaphor for a sudden rise in social status from poverty to wealth
- 鱼跃龙门 yúyuèlóngmén to pass a competitive examBased on the legend of a carp jumping over the Dragon Gate to become a dragon, it is used as a metaphor for passing a high-level exam or achieving a sudden rise in social status.
- 鲤跃龙门 lǐyuèlóngmén to achieve great successlit. "the carp leaps over the Dragon Gate"; to achieve sudden success or win promotion, originally referring to passing the imperial civil-service examination
- 暴腮龙门 pùsāilóngmén to fail an examTo fail the imperial civil-service examination