説明書

Thanks, and also apology — 感謝 and 謝罪 use the same character. Both are things you owe and then say.

Long life, and the celebration of it. The character on wedding envelopes and New Year food.

Wisdom that comes from seeing clearly. The older, weightier form of 知恵.

Plain, undyed, just as it came. 素直 is honest and unguarded; 素材 is raw material.