Gainsay :---> deny.
Garrulous :---> loquacious, wordy, talkative.
Generic :---> general, uniform to whole group.
Gist :---> main point,
Glossary :---> words.
Gnome :---> goblin, dwarf.
Goad :---> urge on.
Gouge :---> tear out.
Gregarious :---> sociable, living in flocks.
guile :---> deceit, duplicity, wiliness
Gullible :---> credulous, naïve.