pertaining to or involving two or more nations.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use cross-national in a sentence
But around the world, says the report, “cross-national differences are enormous.”It Gets Better—but Mostly if You Live in a Rich, Democratic Country | Jay Michaelson | November 11, 2014 | THE DAILY BEAST
People and goods can cross national lines by the air without passports or customs.Opportunities in Aviation | Arthur Sweetser