Acquire, as expenses can be defined as to INCUR, which is a five letter word. To INCUR means to become liable for or to take on something, such as a debt or an obligation. It is often used in the context of financial transactions, where one party incurs a debt or an obligation to another party. In this context, it is often used to refer to the act of taking on a financial responsibility or obligation. For example, if a company incurs expenses, it means that the company has taken on a financial responsibility or obligation to pay for those expenses.