烽燧

fire beacon tower (used in frontier regions in former times to relay information about the enemy, using smoke by day and fire at night)

fe̅ng = f + (e)ng1

beacon fire

suì = su + ei4

fire / speculum / to obtain fire by drilling wood, striking flint, sun's rays etc

烽燧 is not used as a component in another word.

烽燧 currently does not appear in any sentence.