From inter- +‎ nacio (“nation”) +‎ -a (adjectival ending).

• IPA^(key): /internaˈt͡sia/

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• Rhymes: -ia
• Syllabification: in‧ter‧na‧ci‧a
• Hyphenation: inter‧nacia

internacia (accusative singular internacian, plural internaciaj, accusative plural internaciajn)

1. international

• internacieco