white / undyed, unpainted, unseasoned, etc. / pure / innocent / normal, unspecial

unapplied, undecorated; also the object that is unapplied or undecorated / honest, serious; also the person who is honest or serious

investigate, inspect

white soil used as a pigment

white flag; truce flag; surrender flag

(literary) a sharp sword; a naked sword

white tea

a river with clear water / an area with small pebbles or sand spread out evenly, such as in a rock garden (from the visual similarity to a clear body of water)

maegashira

a white wig, worn by an actor playing a demon in Noh