GotGatGelGumGetGusGunGalGil (Final Fantasy reference)Gan
The opposite of "bright" is usually "dim." The "g" may be incorrect.
gaininggallonsgambledgardensgarmentgetawaygatewaygathersgeneralgentilegesturegettingghastlygiraffegirlishglassesglimmerglistenglorifygolfinggoslingglowinggradinggrantedglaringgleefulgloatedgovernsgravitygreatlygrowinggravelygrantedgreetedgravinggriffingrimacegrizzlygrosslygroomedgroomergroovedgrufflygrumblegruntedguessedgunshotguzzledgushinggutting
Geometry.
Gondola is a type of boat. It begins with the letter g.
Gannet
grebe
glory
Goul ? :)
GOD
The only real word that fits this is sag.Sag: To sink or bend.
Gash