③
枪炮(总称);火器
相关 名词理据由「单件火器」泛化为「枪炮等火器之总称」——军备、战事语境中 guns 常统指各类枪炮。
例句
Both sides were well supplied with guns.双方都配备了充足的枪炮;承本义——单件火器之名泛为枪炮总称(相关·分类)。The warship carried heavy guns.这艘军舰装载着重炮;同此——军备中的火器总称。
溯源路径本义 → 义项3