虎の巻

とらのまき

Also written トラの巻

Meanings

1. Expression, Noun book of (trade) secrets; secrets
2. study guide (to supplement a textbook); crib; key

Kanji

• 虎 tiger. Read as とら.
• 巻 roll. Read as まき.

Example sentences

• これは野球の虎の巻だ。
  This is the bible of baseball.

Word lists

• Idioms

Jinuma: Japanese Dictionary · Word lists