There are several synonyms that can be used instead of the term "government-chartered." One option is "state-owned," which refers to entities that are owned and operated by the government. Another alternative is "publicly owned," which indicates that the government holds a controlling stake in the organization. "Government-backed" is another option that highlights the support or guarantee of the government. Some other alternatives include "government-sponsored" or "officially recognized," which both indicate a strong connection to the government. "Regulated by the government" could also describe a government-chartered entity that operates within certain guidelines set by the government. Ultimately, the specific synonym that is used will depend on the context and intended meaning.