Wiktionary
gr
abbr. 1 grain, a unit of mass. 2 uncommon abbreviation of gram; the standard symbol for gram since the International System of Units was introduced in 1960 is g. 3 Greece
Wikipedia
GR
GR may refer to:
Usage examples of "gr".
No wonder is thogh that she were astoned To seen so greet a grest come in that place.