What does 火薬 mean?
火薬 is a Japanese noun meaning “gunpowder; powder” in English. It is written as 火薬 in kanji, かやく in hiragana, and kayaku in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
火薬は注意深く扱わなければならない。
Gunpowder needs to be handled very carefully.