involving, existing between, or shared by two or more countries
Our city hosts an international food festival every summer.
They signed an international agreement to protect ocean wildlife.
✦ Formed in the late 18th century from Latin inter- “between” + national.
a sports match or a player that represents a country against other nations
After his third match for Brazil, Lucas was proud to be called an international.
Tomorrow's rugby international between France and New Zealand is sold out.
✦ Noun sense developed in the late 19th century from the adjective, referring first to international sporting contests.
in a way that involves more than one country or nation; between or among countries.
The new movie will be released internationally next month.
Our company now sells products internationally.
✦ From English international + -ly (adverbial suffix), first used in the mid-19th century amid growing global diplomacy.