坎儿井

karez, qanat or "horizontal well" (irrigation and water management system used in Xinjiang, Central Asia and Middle East)

pit / threshold / one of the Eight Trigrams 八卦[ba1 gua4], symbolizing water / ☵

old variant of 坎[kan3] / pit / hole

critical juncture / key moment

variant of 人[ren2] / "person" radical in Chinese characters (Kangxi radical 10), occurring in 兒, 兀, 兄 etc

child / son

non-syllabic diminutive suffix / retroflex final

a well / CL:口[kou3] / neat / orderly