Triple Frontier

Từ điển Oxford Learners Wordfinder Dictionary

noun

the border area where Argentina and Brazil and Paraguay meet;
an active South American center for contraband and drug trafficking and money laundering;
a suspected locale for Islamic extremist groups
• Instance Hypernyms:
frontier
• Part Holonyms:
Argentina, Argentine Republic, Brazil, Federative Republic of Brazil, Brasil,
Paraguay, Republic of Paraguay