noun
plural -ments
the act of using money to earn more money :the act of investing money [noncount]
[count] :an amount of money that is invested in something
[count] :something that you buy with the idea that it will increase in value, usefulness, etc.
the act of spending money on something that is valuable or expected to be useful or helpful [noncount]
[count, noncount] :the act of giving your time or effort in order to accomplish something or make something better