Used as a suffix attached to nouns to indicate the cost or expense related to that thing. Common in compounds like 交通費 (transportation expenses) or 生活費 (living expenses).
How much is your monthly food expense?
I calculate the moving costs.
Transportation costs quite a bit every month.
Members need to pay membership fees every year.
I often turn off the lights to cut down on utility costs.
fuel efficiency; gas mileage; fuel consumption
waste; squander; extravagance
expenses; spending; outlay
tuition; school expenses
food expenses; food costs; board
membership fee; dues
at one's own expense; out-of-pocket
travel expenses; travel costs
public expense; public funds
national expenditure; government spending; public funds
construction cost
actual expenses; out-of-pocket costs · cost price
private expense; personal funds; one's own expense
miscellaneous expenses; incidental costs
annual expenditure · annual salary for Diet members
war expenditures; war costs
dormitory fees; boarding expenses
provision of expenses; scholarship; financial aid
club budget; club expenses
enormous expenditure; huge cost
travel expenses; transportation costs; fare
entertainment expenses
utility costs; energy bill; cost of heat and electricity
production cost
advertising expenses; publicity costs
advertising expenses; advertising costs
medical expenses; cost of treatment