noun: (computer hardware) Initialism of graphics processing unit ( an electronic circuit dedicated to generating graphics and displaying images) [(computer hardware) A specialized electronic circuit designed to accelerate the creation of images in a frame buffer intended for output to a display device.]
noun: (aviation) Initialism of ground power unit. (a ground mobile unit that supplies electrical power to an aircraft while on the ground, without needing to power up the engines or APU)
noun: (historical) Initialism of State Political Directorate (Государственное Политическое Управление, Gosudarstvennoye Politicheskoye Upravlenie). (the Russian secret police until 1934)
