知青 [－－]

Jyutping zi1 cing1
Pinyin zhī qīng

Definitions (粵典–words.hk)
  1. 名詞、大陸
    「​知識​青年​」​嘅​簡​稱​，​特指​1950​年代​至​文革​結束​，​喺​中​國​由​城市​下​放到​農​村​嘅​青年​，​受​過​嘅​教育​未必​係​高等教育
    sent-down or "educated" youth, the young people who left the urban districts to live and work in rural areas in China, beginning in the 1950s until the end of the Cultural Revolution
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）

知青 [－－]

Jyutping zi3 cing1
Pinyin zhī qīng

Definitions (CC-CEDICT)
  1. educated youth (sent to work in farms during the Cultural Revolution), abbr. for 知識青年|知识青年[zhi1 shi5 qing1 nian2]
Definitions (Wiktionary)
  1. noun, historical
    The zhiqing, "educated youth", "rusticated youth", or "sent-down youth": the young Chinese sent from urban areas to the work in poor villages during the PRC's Down to the Countryside Movement (上山下鄉運動)
    (syn.) 知识青年, 知識青年, 下放青年