Great may mean:
Large in size
Greatness - the state or status of something as being large, and therefore by implication powerful, majestic, transcendent, or divine.
Gang Resistance Education and Training, "GREAT"
GReAT Graph Rewriting and Transformation, a MTL
Great (film), a 1975 British animated short film about Isambard Kingdom Brunel (IMDb)
Great (supermarket), an upscale supermarket in Hong Kong
Great Britain
Great Lakes
Great Wall of China
Old Great Bulgaria
Great Russia
Great Depression
Great War
Great Purge
Great Migration
Great Plague
Great Bittern
Great Bowerbird
Great Cormorant
Great Dane
Great Egret
Great Shearwater
Great Snipe
Great Tit bird
Great White Shark
Great circle
Great icosahedron
Great dodecahedron
Great stellated dodecahedron
The Great Escape
The Great Gatsby
The Great One