Longman Dictionary of Contemporary English homepage

isolationism

 noun
     
Related topics: Politics
i‧so‧la‧tion‧is‧m [uncountable]
PP beliefs or actions that are based on the political principle that your country should not be involved in the affairs of other countries
—isolationist adjective:
isolationist policies
—isolationist noun [countable]
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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