What does 兜 mean?
兜 is a Japanese noun meaning “helmet (of a warrior); headpiece” in English. It is written as 兜 in kanji, かぶと in hiragana, and kabuto in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
勝って兜の緒を締めよ。
You must keep up your guard even after a victory.