theology in WordNet English dictionary

1. the rational and systematic study of religion and its influences and of the nature of religious truth
   theology  divinity 
   
2. a particular system or school of religious beliefs and teachings
   "Jewish theology"; "Roman Catholic theology"
   theology  theological system 
   
3. the learned profession acquired by specialized courses in religion (usually taught at a college or seminary)
   "he studied theology at Oxford"
   theology