How to say "helmet" in Japanese

• ヘルメットCommon
  nounThe everyday word for a helmet as protective headgear: a hard hat on a construction site, or a bicycle or motorcycle helmet. A loanword, it covers the helmets worn for safety.
  ヘルメットをかぶらずにバイクに乗のるのは危険きけんだ。↗

  It is dangerous to ride a motorbike without a helmet.
• 兜かぶとCommon
  nounThe helmet of a warrior: the headpiece of samurai armor, the kind seen in historical displays. It is not the word for everyday protective helmets.
  勝かって兜かぶとの緒いとぐちを締しめよ。↗

  You must keep up your guard even after a victory.

Use 「ヘルメット」 for everyday protective headgear, such as safety, bicycle, or motorcycle helmets, and 兜 for the helmet of a warrior, the headpiece of traditional Japanese armor.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• ヘルメットhelmet
• 兜かぶとhelmet (of a warrior)
• メットhelmet
• 鉄帽てつぼうhelmet