セキュリティゲートMeanings1nounsecurity gateA gate that controls access for security purposes, such as at airports, stations, or building entrances.空くう港こうでセキュリティゲートを通とおるとき、金きん属ぞく探たん知ち機きが鳴なった。When I passed through the security gate at the airport, the metal detector went off.
