儕輩 [侪辈]

Jyutping caai4 bui3
Pinyin chái bèi

Definitions (Wiktionary)
  1. noun, literary
    someone of a similar age; peer
  2. noun, literary
    someone of the same generation
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）