KANJI GUIDE
菩薩 is a bodhisattva; 菩提 is awakening. Borrowed purely for its sound.
Sound, including music. 音楽 is music; 発音 is pronunciation.
Half of 瑠璃, the deep blue stone. On its own it is used mostly for its sound and its colour.
The character in 武士道, the way of the samurai, and in 柔道. Read dō, and the head of it is taken for do.
The third of the twelve zodiac signs, and the hour before dawn. A tiger year is said to bring people who lead rather than follow.