Good enough for me. I agree.
GR - agree
GS - bags
GT - figtree
GU: guy
Martin Ringqvist comes up on Google search.
GV = dogvane
GW - gangway
GX: GNX, Buick Regal Grand National (close but no GX)
Or Guangxi.
GY - buggy
GY: mangy
GZ - zigzag
HA = amaranthaceous
HB: bushbaby
HC- Ashcan
HD = withdraw
HE: Homoeopathically
HF: faithful
HG - churchgoing