かいじん

Noun

 * 1)  ash and dust; something worthless
 * 2)  ash and cinders
 * 3)  someone mysterious in a negative way
 * 4)  trash, rubbish
 * 5)  someone who lives by the sea; a fisherman or fisherwoman
 * 6)  a sea god
 * 7)   the act of decamping and withdrawing