予防法 よぼうほう Meanings Noun precautionary measures Kanji 予 pre-. Read as ヨ. 防 defend. Read as ボウ. 法 law. Read as ホウ. Words containing 予防法 海上衝突予防法 (かいじょうしょうとつよぼうほう) Act on Preventing Collisions at Sea Jinuma: Japanese Dictionary · Word lists