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GNSS jamming
GNSS jamming, also known as GPS jamming, is the transmission of radio signals strong enough to prevent satellite navigation receivers from fixing a position or time.
GNSS spoofing
GNSS spoofing, also known as GPS spoofing, broadcasts counterfeit satellite navigation signals so a victim receiver computes a false position, velocity, or time, often unnoticed.
GNU
GNU, a recursive acronym for "GNU's Not Unix," is a Unix-like operating system of entirely free software, started by Richard Stallman in 1984 and usually paired with Linux.
GNU Affero General Public License
The GNU Affero General Public License, or GNU AGPL, is a free copyleft license published by the Free Software Foundation in 2007 for network server software.
GNU Assembler
The GNU Assembler, commonly called GAS and invoked as as, is the portable assembler of GNU Binutils, acting as the back end of GCC and supporting many processor architectures.
GNU Autotools
GNU Autotools, also called the GNU build system, is a suite of programming tools, principally Autoconf, Automake, and Libtool, that makes source packages portable across Unix-like systems.
GNU Binutils
GNU Binutils is a collection of GNU Project binary utilities, including the assembler as and the linker ld, that create, manipulate, and examine object files and executables.
GNU Compiler Collection
The GNU Compiler Collection, originally the GNU C Compiler, is a free-software compiler suite supporting C, C++, Fortran, and Ada, first released in 1987 for the GNU operating system.
GNU Core Utilities
GNU Core Utilities (Coreutils) is the GNU package of basic file, shell, and text manipulation commands such as ls, cp, mv, and cat, formed in 2003 from fileutils, sh-utils, and textutils.
GNU Debugger
The GNU Debugger (GDB) is the GNU Project's portable source-level debugger, originally written by Richard Stallman, which lets programmers inspect and fix programs while they run.
GNU Fortran
GNU Fortran, or GFortran, is the free Fortran compiler front end and run-time library of GCC, invoked with the gfortran command and supporting Fortran 77 through initial Fortran 2023.
GNU Free Documentation License
The GNU Free Documentation License, also known as GNU FDL or GFDL, is a copyleft license published by the Free Software Foundation for manuals, textbooks, and other documents.
GNU General Public License
The GNU General Public License (GNU GPL) is a copyleft software license written by Richard Stallman and published by the Free Software Foundation, first released in 1989.
GNU GRUB
GNU GRUB (the GRand Unified Bootloader) is a free-software boot loader that loads operating system kernels such as Linux, and is the default in many major GNU/Linux distributions.
GNU Hurd
GNU Hurd, known as The Hurd, is the GNU Project's replacement for the Unix kernel, a set of user-space servers on the GNU Mach microkernel begun in 1990.
GNU Lesser General Public License
The GNU Lesser General Public License (LGPL) is a copyleft free software license from the Free Software Foundation that lets proprietary programs link to covered libraries.
GNU nano
GNU nano, also known as the Nano text editor, is a small, free terminal text editor created as a free replacement for Pico, preinstalled on most Linux distributions.
GNU Privacy Guard
GNU Privacy Guard, also known as GnuPG or GPG, is free software implementing the OpenPGP standard for encryption and digital signatures, released in 1997 under the GNU General Public License.
GNU Project
The GNU Project is a free software project launched by Richard Stallman in 1983 to develop a complete Unix-compatible operating system, spawning the GPL and tools like GCC and Emacs.
GnuCash
GnuCash, also known as X-Accountant, is a free, open-source accounting program for individuals and small businesses, built on double-entry bookkeeping, developed since 1996, and running on Linux, macOS, and Windows.
Gnutella
Gnutella is a decentralized peer-to-peer file-sharing protocol released by Nullsoft, an AOL subsidiary, on March 14, 2000, in which every program acts as both client and server.
Go (programming language)
Go, also called Golang, is a statically typed, compiled programming language designed at Google and released in 2009, known for built-in concurrency and powering Docker and Kubernetes.
Go Between Bridge
The Go Between Bridge is a four-lane tolled bridge across the Brisbane River between Milton and South Brisbane, Australia, opened to traffic in July 2010.
Go First
Go First, which flew as GoAir from 2005, was a Wadia Group Indian budget airline that filed for insolvency in 2023 after Pratt & Whitney engine groundings.
GO Transit
GO Transit, short for Government of Ontario Transit, is the regional public transit service for the Greater Toronto and Hamilton area, operating commuter rail and bus services since 1967.
GO-1 (AgiBot)
GO-1 (Genie Operator-1) is a vision-language-latent-action foundation model for robot manipulation released by the Chinese robotics company AgiBot in March 2025, trained on the company's AgiBot World dataset.
Go-around
A go-around, also called a missed approach or wave-off, is an aviation maneuver in which a pilot abandons a landing attempt and climbs away for another approach.
Go-fast boat
A go-fast boat, or cigarette boat, is a long, narrow speedboat with high-output engines, built for speeds above ordinary craft and used in luxury boating and drug smuggling.
Go-kart
A go-kart, also written go-cart, is a small single-seater racing or recreational vehicle with an open frame, four wheels, and no suspension, invented in California in 1956.
Go90
Go90 was a free, ad-supported mobile video streaming service owned by Verizon Communications, launched in October 2015 and shut down on July 31, 2018, after Verizon spent roughly $1.2 billion on it.