Charge is a common word with many synonyms that can help make your writing more interesting and varied. Some synonyms for charge include "invoice," "cost," "fee," "rate," "price," and "tariff." Other possible synonyms include "demand," "claim," "toll," "assessment," "levy," and "imposition." Depending on the context in which charge is used, some words may be more appropriate than others. For instance, "demand" might be a more fitting synonym when discussing emotional or moral charges. Conversely, "tariff" would be more relevant when discussing import or export charges. With so many options, incorporating different synonyms for charge can add depth and nuance to your writing.