a great deal in WordNet English dictionary

1. to a very great degree or extent
   "I feel a lot better"; "we enjoyed ourselves very much"; "she was very much interested"; "this would help a great deal"
   a lot  lots  a good deal  a great deal  much  very much  a lot  lots  a good deal  a great deal  much  very much 
   
2. frequently or in great quantities
   "I don't drink much"; "I don't travel much"
   much  a great deal  often  much  a great deal  often