Sentence:  As of 1975, diplomatic ostracism is still imposed by the Organization of American States (OAS). The inter-American community also exercises a trade embargo against Cuba. But even within this context of hemispheric <WSD>isolation</WSD>, Havana's diplomacy is strikingly contradictory. 
Meaning of the word marked with <WSD> tags:  The state of not having diplomatic relations with other countries (either with most or all other countries, or with specified other countries).