fourth world
noun
often capitalized F&W
: a group of nations especially in Africa and Asia characterized by extremely low per capita income and an absence of valuable natural resources
Cite this Entry
“Fourth world.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fourth%20world. Accessed 31 Oct. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share