Answer:
Expansionists were people who expanded the territory and/or currency of their country/state.
Step-by-step explanation:
Expansionism is the policy of expanding one's territory and/or currency towards other regions. This term became widely known after the events of the American Revolution where the territory of the American states was expanded beyond the existing 13 states towards other regions. This can be done via military expansion or through economic growth. Expansionists are people who take part in such expansionistic approaches.