What term is used to describe efforts to improve the political, economic, or social conditions of a country?

The term that best describes efforts to improve the political, economic, or social conditions of a country is "Reform." Reforms typically involve gradual changes or improvements to existing systems, policies, or structures. They are aimed at addressing issues or shortcomings within a society without completely overturning the established order. For instance, at a political level, reforms can include changes to voting rights, electoral systems, or governmental processes to enhance democratic participation and accountability.

While "Revolution" refers to a more drastic, often sudden change, typically involving the overthrow of a government or social order, it does not focus on incremental improvements. "Restoration" implies bringing back a previous system or regime, which is more about reverting to what once was rather than making positive changes. "Regeneration" often suggests revitalization but can be more focused on a revival rather than systematic improvement across a broad range of societal aspects. Therefore, "Reform" is the most fitting term for the efforts aimed at improving a country's conditions.