(~s)
1.
Expenditure is the spending of money on something, or the money that is spent on something. (FORMAL)
Policies of tax reduction must lead to reduced public ~...
They should cut their ~ on defence...
N-VAR
2.
Expenditure of something such as time or energy is the using of that thing for a particular purpose. (FORMAL)
The financial rewards justified the ~ of effort.
N-UNCOUNT: N of n