All articles starting with G

Grumman LLV

The Grumman LLV, or Long Life Vehicle, is a right-hand-drive mail delivery truck built by Grumman on a General Motors chassis for the United States Postal Service since 1987.

Grumman OV-1 Mohawk

The Grumman OV-1 Mohawk is a twin-turboprop, two-seat battlefield surveillance and observation aircraft built by Grumman for the US Army, flown from 1959 to 1996.

The Grumman S-2 Tracker, originally designated S2F, is an American twin-engine carrier-based anti-submarine aircraft that was the US Navy's front-line sub hunter from 1954 and later flew as a firefighting airtanker.

Grumman TBF Avenger

The Grumman TBF Avenger, also known as the TBM Avenger, was an American three-seat, carrier-based torpedo bomber that replaced the Douglas TBD Devastator in the Second World War.

Grumman X-29

The Grumman X-29 was an American experimental aircraft with forward-swept wings, built by Grumman for DARPA, the Air Force, and NASA and flown from 1984 to 1992.

Grumpier Old Men

Grumpier Old Men is a 1995 American romantic comedy directed by Howard Deutch, reuniting Jack Lemmon and Walter Matthau as feuding Minnesota neighbors, with Sophia Loren as a restaurateur.

Grumpy Cat

Grumpy Cat, real name Tardar Sauce (2012–2019), was an Arizona cat whose frown from feline dwarfism and an underbite made her a viral Reddit meme, bestselling author brand, and Lifetime movie star.

Grumpy Old Men (film)

Grumpy Old Men is a 1993 American romantic comedy directed by Donald Petrie, starring Jack Lemmon and Walter Matthau as feuding Minnesota neighbors who both court a new widow.

Oct 21, 2026

Grünbach Formation

Grünbach Formation (Grünbach-Formation), coal-bearing clastic unit of the Gosau Group in Lower Austria; upper Santonian to lower Campanian, terrestrial-deltaic with marine incursions, source of the Grünbach flora and historic coal mining.

Gründerzeit

Gründerzeit, the "founders' period," is the German term for Central Europe's industrialization boom from 1871, marked by mass company founding and ending with the 1873 crash.

Grundig

Grundig, also known as Grundig AG, is a German electronics brand founded by Max Grundig in Fürth in 1945 that became Europe's largest radio and TV maker.

Grundlagen der Arithmetik

Die Grundlagen der Arithmetik (The Foundations of Arithmetic) is an 1884 book by the German logician Gottlob Frege, arguing that arithmetic is a development of logic.

Grundlagen der Geometrie

Grundlagen der Geometrie (Foundations of Geometry) is a monograph by the German mathematician David Hilbert, first published in Leipzig in 1899, which supplied the first complete axiom system for Euclidean geometry and shaped twentieth-century mathematics.

Oct 22, 2026

Grundtvigianism

Grundtvigianism (Danish: grundtvigianisme) is a Danish churchly direction and popular movement based on N.F.S. Grundtvig's ideas, shaping Danish politics, education, and folk high schools from 1830 onward.

Grüneisen parameter

The Grüneisen parameter (γ) is a dimensionless solid-state quantity measuring how a crystal's vibrational frequencies shift with volume, named for German physicist Eduard Grüneisen and widely used in high-pressure and geophysics work.

Grüner Veltliner

Grüner Veltliner, or Weißgipfler, is Austria's most planted white wine grape, about one third of the vineyard area. A Traminer cross with the St. Georgen variety, it is known for peppery, dry wines under DAC designations such as Weinviertel DAC.

Grunge

Grunge, also known as the Seattle sound, is a rock genre that arose in the Pacific Northwest in the mid-1980s, blending heavy metal and punk around the Sub Pop label.

Grungegaze

Grungegaze, also called dreamo, is a loosely defined rock genre that mixes grunge with the dreamy sound of shoegaze, applied mostly to alternative rock bands that emerged after 2018.

Grüns

Grüns is a US gummy supplement brand founded in 2023 by Chad Janis, selling Superfoods Greens Gummies (8-gummy daily packs, 60+ ingredients, 6 g fiber); acquired by Unilever on 1 June 2026.

Grunt (board wargame)

Grunt: Tactical Combat in Vietnam, 1965 is a two-player board wargame published by SPI in 1971 that pioneered squad-level combat, three years before Squad Leader.

Grunting in tennis

Grunting in tennis: loud exhalations on shots, popularized from 1959 and by Monica Seles. Studies show grunts slow opponents' shot perception (21–33 ms) and raise the grunter's stroke velocity; ITF rule 26 treats excessive grunting as hindrance.

Grunwald–Winstein equation

The Grunwald–Winstein equation, proposed by Ernest Grunwald and Saul Winstein in 1948, is a linear free-energy relationship relating solvolysis rates to solvent ionizing power, extended to include nucleophilicity.

Grup Cartel (group)

Cartel is a Turkish-language rap group formed in Germany in 1995 from Karakan, Cinai Şebeke, and Erci E., whose debut album first brought Turkish rap to Turkey.

Grup Vitamin

Grup Vitamin is a Turkish comedy-pop and parody band founded in Istanbul in 1990 by Gökhan Semiz, Emrah Anul, and Selçuk Aksoy; after Semiz died in 1998, the band reunited in 2012.

Grup Yorum

Grup Yorum is a Turkish political protest music group founded in Istanbul in 1985, blending Anatolian folk and rock with revolutionary song despite bans and lawsuits.

Grupa Pracuj

Grupa Pracuj, the Pracuj Group, is a Warsaw-based HR technology group founded in 2000 by Przemysław Gacek, operating the Polish job board Pracuj.pl and Ukrainian platform Robota.ua.

Oct 10, 2026

Grupa PZU

Grupa PZU is Poland's largest insurance group, a Warsaw-listed financial holding centered on Powszechny Zakład Ubezpieczeń that combines property, life, and health insurance with two banks, serving 22 million clients.

Oct 3, 2026

Grupo 7

Grupo 7 (released internationally as Unit 7) is a 2012 Spanish police thriller directed by Alberto Rodríguez, following a Seville anti-drug unit in the late 1980s whose methods grow increasingly illegal ahead of the 1992 Expo.

Grupo ABC (Brazilian advertising holding)

Grupo ABC was a São Paulo-based advertising and marketing holding founded in 2002 by Nizan Guanaes and Guga Valente, Brazil's largest, sold to Omnicom in 2015 for about R$ 1 billion.