插孔 [－－]

Jyutping caap3 hung2
Pinyin chā kǒng

Definitions (CC-CEDICT)
  1. jack
  2. socket
Definitions (Wiktionary)
  1. noun
    socket (for an electric plug)
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）