Wordnet 3.0
VERB (2)
1. 
 assign a new name to; 
- Example: "Many streets in the former East Germany were renamed in 1990"2. 
 name again or anew; 
- Example: "He was renamed Minister of the Interior"
The Collaborative International Dictionary of English v.0.48:
Rename \Re*name"\ (r?*n?m"), v. t.
   To give a new name to.
   [1913 Webster]
WordNet (r) 3.0 (2006):
rename
    v 1: assign a new name to; "Many streets in the former East
         Germany were renamed in 1990"
    2: name again or anew; "He was renamed Minister of the Interior"