frugality

noun
1
a way of living in which you use only as much money or food as is necessary
صرفه‌جویی, قناعت, اقتصاد در مصرف
opposite extravagance
2
the fact of a meal being small and plain and not costing very much
صرفه‌جویی, قناعت
the frugality of the meal