固定費 【コテイヒ】 fixed cost, fixed expense 交際費 【コウサイヒ】 entertainment expenses Kun reading compounds. 費やす 【ついやす】 to spend, to expend, to consume, to waste, to squander, to throw away, to devote 費える 【ついえる】 to be used up (of money, savings, etc.), to dwindle away, to be wasted (of ...