大交合 [－－－]

Jyutping daai6 gaau1 hap6
Pinyin dà jiāo hé

Definitions (粵典–words.hk)
  1. 名詞、專名、潮語、香港
    香港​天文台​嘅​戲​稱
    nickname for the Hong Kong Observatory
Definitions (Wiktionary)
  1. name, Cantonese, Hong-Kong, humorous
    Hong Kong Observatory