(in′tər·nash′ən·əl) adjective
Pertaining to two or more nations; affecting nations generally.
—noun A person who is a citizen of more than one nation.
—in′ter·na′·tion·al·ly adverb

(in′tər·nash′ən·əl) noun
1. One of several international organizations of socialist workers.
2. A society formed in London in 1864 for the international political organization of workingmen, in the socialistic conflict with capital, of which Karl Marx was the dominant spirit; its full title was the International Workingmen's Association: last convention in Philadelphia, 1876.
3. See INTERNATIONALE.
—Second International An organization, formed in 1889, to replace the First International, from which the Third International seceded: also called Socialist International.
—Third or Red International A socialist workers' organization proclaimed in Russia March 5, 1919, representing twelve countries: dissolved in 1943: also called Comintern.