Word familyadjectivegunlessnoungunnagegunnergunnerygunninggunboatgun carriageguncottongun doggunfightgunfightergunfiregunflintgunhousegunlayergunlockgunmakergunmangunmetalgunplaygunpointgunportgunpowdergunroomgunrunnergunrunninggunshipgunshotgunsightgunslingergunsmithgunstickgunstockgunstonegun
gun·met·al /ˈɡʌnˌmetl/ noun [uncountableU]
1.HCMa dull grey-coloured metal which is a mixture of copper, tin, and zinc 炮铜,炮合金〔铜、锡、锌的合金〕