There are several synonyms for the phrase "compensate for expenses." One such synonym is "reimburse," which refers to the act of providing payment or compensation for money that has already been spent. Another synonym is "cover," which means to pay for or take care of expenses. Additionally, the term "offset" can be used to mean compensating for expenses by balancing them out with something else. "Subsidize" is another synonym, meaning to provide financial assistance to cover expenses. Finally, the phrase "foot the bill" can also be used to describe compensating for expenses, implying that someone is taking responsibility for paying for something.