Wiktionary
g1
pre. (context star English) (misspelling of Gl English), the prefix for Gliese catalog of nearby stars
Wikipedia
G1
G1, G01, G.I, G-1, or G One may refer to:
G1 (website)
G1 is a Brazilian news portal maintained by the Rede Globo and is considered the biggest news site in the country. It was released on September 18, 2006, in the anniversary of 56 years of TV in Brazil. Versions in English and Spanish subtitling the site's videos were unveiled in 2010.