· gloomy
· glum
· grief
· grief-stricken
· grim
· grieving
· grievous
grief
Grief
GrowGardenGropeGreetGiggleGobble
Gin???
Greenwich
glee
· golf · geese
golf cart
Grapes Grease
Girl.
Garbage Disposal
You could say Go, Goodbye or Get out of here. They start with the letter g.
Gary PaulsenGizzardGorgeGrouseGully