There are a variety of terms explained on the general nature of God page. This page is primarily about God from a Christian perspective.
TOOOsHd
This word is brilliant for remembering some of the vital things about the Christian view of God. I know it's spelt weirdly, but if you can remember it you will be able to press on to brilliant grades in every Beliefs exam that they throw at you.
T-Trinity
O-Omnipotent
O-Omniscient
O-Omnipresent
sHd- separate, holy, different
These terms are explained more fully on this page.
Other terms you can use:
Eternal - someone/thing that goes on forever, has no beginning or end.
Creator - someone who has made something - in this case, has made the universe by speaking and out of nothing
Good/loving - primarily expressed through Jesus giving his life as a sacrifice for sins on the Cross
Moral - right and wrong. An example of this might include the ten commandments.
Judge - the end is when all people will be judged according to God's pure perspective. Heaven and hell.