令箭 [－－]

Jyutping ling6 zin3
Pinyin lìng jiàn

Definitions (CC-CEDICT)
  1. arrow banner of command (archaic used as symbol of military authority)
  2. fig. instructions from one's superiors
Definitions (Wiktionary)
  1. noun
    arrow-shaped token of authority (used formerly in the army)
  2. noun, figuratively
    instructions from one's superiors