キーホルダー

noun

keychain; key holder

A small chain or ring for holding keys, often with a decorative charm. Wasei-eigo from 'key holder'.

wasei-eigo (Japanese-coined English), from key holder

• 旅りょ行こうのお土産みやげにキーホルダーを買かった。

  I bought a keychain as a souvenir from my trip.

• 鍵かぎをなくさないようにキーホルダーをつけている。

  I attach a keychain so I don't lose my keys.

noun

key ring (encryption)

Technical term in cryptography for a storage file or container holding encryption keys. Domain-specific use.

• PGPでは公こう開かい鍵かぎをキーホルダーに保ほ存ぞんする。

  In PGP, public keys are stored in a key ring.