烽燧 [－－]

Jyutping fung1 seoi6
Pinyin fēng suì

Definitions (CC-CEDICT)
  1. fire beacon tower (used in frontier regions in former times to relay information about the enemy, using smoke by day and fire at night)
Definitions (Wiktionary)
  1. noun
    system of smoke signals used in ancient China
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）