tone deafness; being tone-deaf / (only in compounds) incapability, ineptitude, weakness

a thermometer

favor, obligation, debt of gratitude

a ghost, particularly a vengeful or malevolent one

Alternative spelling of 隠形: concealment, hiding one's body

Alternative form of 隠身

stealthy, covert, undercover

stealth / A spy or undercover detective. In former times, included warriors or ninja sent to gather information.

(music) rhythm; temperament

temperate zone