When it comes to the term "justifiable charges," there are many synonyms that can be used to describe the same thing. Some of these include reasonable fees, valid expenses, justified costs, legitimate payments, fair prices, and appropriate expenditures. These synonyms all refer to charges that are deemed necessary, legitimate and reasonable in a given context and they are all used to describe expenses that can be justified based on the circumstances. At the end of the day, whether you use the term "justifiable charges" or one of its many synonyms, the key idea remains the same: that the costs in question are reasonable and fair based on the situation.