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Jyutping hap6 zung1
Pinyin hé zōng

Definitions (Wiktionary)
  1. noun, historical
    Vertical Alliance (an alliance against the state of Qin)

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Jyutping hap6 zung1
Pinyin hé zòng

Definitions (CC-CEDICT)
  1. Vertical Alliance, clique of the School of Diplomacy 縱橫家|纵横家[Zong4 heng2 jia1] during the Warring States Period (425-221 BC)
Definitions (Wiktionary)
  1. noun, historical
    Vertical Alliance (an alliance against the state of Qin)