1. Editing that involves writing something again
   "The author spent months revising the novel's ending";
   - rewriting

1. Make revisions in
   "revise a thesis"
    
2. Reorganize, especially for the purpose of updating and improving
   "We must revise the town's economy";
   - retool
    
3. [Brit] Study intensively, as before an exam
   "The students revised before the final exam";
   - cram [informal], grind away, bone up [informal], swot [Brit, informal], mug up [Brit, informal], swot up [Brit, informal], bone [informal]
    
4. [Brit] Refresh one's memory
   "I revised the route before setting off";
   - review, brush up, refresh

Type of: call back, call up, editing, hit the books [informal], recall, recollect, redaction, remember, reorganise [Brit], reorganize, retrieve, rewrite, shake up, study, think

Encyclopedia: Revising