What does 兵器 mean?
兵器 is a Japanese noun meaning “arms, weapons, ordinance” in English. It is written as 兵器 in kanji, へいき in hiragana, and heiki in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
核兵器を全面的に禁止して初めて、兵器競争を止めさせることができる。
Only by prohibiting nuclear weapons altogether can we stop the arms race.