A more thorough explanation:

Definition: Expenditure refers to the act of spending money or resources, or the amount of money or resources spent.

Examples:

• John's monthly expenditure on rent and utilities is $1,500.
• The company's expenditure on advertising has increased by 20% this year.
• The government's expenditure on healthcare has been a topic of debate in recent years.

The examples illustrate how expenditure refers to the act of paying out money or resources, or the amount of money or resources spent. In the first example, John is spending $1,500 on rent and utilities. In the second example, the company is paying more for advertising than they did in the past. In the third example, the government is allocating funds towards healthcare. All of these actions involve the expenditure of money or resources.