G-5
The Group of Five is a context-dependent shorthand term for a group of five nations. The composition of the five and what is encompassed by the term is construed differently in different time frames. Initially, the term "Group of Five" or "G5" encompassed the five leading economies of the world, but the use of the term changed over time. Nowadays, the term tends to describe the next tier of nations whose economies had expanded so substantially as to be construed in the same category as the world's eight major industrialized countries.