gro /ˈɡrəʊ/adjective 1number 1noun 1forms 3 adjective1 •(US, slang) Disgusting, unpleasant; gross.Wash your hair! It's totally gro. number1 •The cardinal number occurring after el do el (↋↋) and before gro one (101) in a duodecimal system. Written 100, decimal value 144. noun1 •(UK) Abbreviation of grove. formsGROs · more gro · most gro
GRO noun3 •Initialism of guest relation officer. •(Singapore) Initialism of grassroots organization. •Abbreviation of Guerrero: a state of Mexico. formsGROs