ナショナルセキュリティーMeanings1nounnational securityLoanword from English, used in political, military, and economic contexts. Often appears in compound terms like ナショナルセキュリティー戦略.政せい府ふは新あらたなナショナルセキュリティー戦せん略りゃくを発はっ表ぴょうした。The government announced a new national security strategy.