"isolation" in the noun sense
1. isolation
a state of separation between persons or groups
2. isolation
a feeling of being disliked and alone
3. isolation, closing off
the act of isolating something setting something apart from others
4. isolation
psychiatry) a defense mechanism in which memory of an unacceptable act or impulse is separated from the emotion originally associated with it
5. isolation
a country's withdrawal from international politics
"he opposed a policy of American isolation"
Source: WordNet® (An amazing lexical database of English)
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