客官 [－－]

Jyutping haak3 gun1
Pinyin kè guān

Definitions (CC-CEDICT)
  1. (polite appellation for a guest at a hotel etc)
Definitions (Wiktionary)
  1. noun
    A respectful form of address to the customer or guest, especially during the Early Modern Chinese period: sir; madam
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）