WordReference Random House Unabridged Dictionary of American English © 2026
mul•ti•lat•er•al•ize
(mul′ti lat′ər ə līz′),USA pronunciation v.t., -ized, -iz•ing.
mul′ti•lat′er•al•i•za′tion, n.
- to open to participation by several nations, organizations, etc.:to multilateralize trade agreements.
- multilateral + -ize 1945–50