What does "expansionism" mean?

The policy, of a nation, of expanding its territory or its economic influence.

How do you pronounce "expansionism"?

Pronounced //ɛkˈspænʃənɪzəm//.

Common synonyms include: appeasement, balance of power, banner, brinkmanship, coexistence, colonialism.

/ɛkˈspænʃənɪzəm/ noun

noun ·Rare ·Advanced level

Noun

1
The policy, of a nation, of expanding its territory or its economic influence. countable, uncountable
"European colonialism exported its domestic, counter-revolutionary Inquisition around the world, starting with Portuguese expansionism around 1500 C.E."
2
the doctrine of expanding the territory or the economic influence of a country wordnet

"Vietnam is getting seriously frightened by the expansionism of China."

From expansion + -ism.