A nation's practice or policy of territorial or economic expansion.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "expansionism" in a sentence
"One of the biggest problems in bringing Israel to its senses, and/or making it accountable for its egregious expansionism, is that the US populace has been cowed into equating anti-zionism with anti-semitism."
"Today we can be pleased that Soviet expansionism is receding, but can we say that the West no longer needs an organisation to guarantee security and stability?"
"It's all about Zionist "expansionism" stifling the quest for peace and human dignity."