WordWeb Online

1. Other than what is under consideration or implied
   "ask somebody else"; "I don't know what else to do"; "where else can we look?"
    
2. Additional to or different from this one or place or time or manner
   "nobody else is here"; "she ignored everything else"; "I don't know where else to look"; "when else can we have the party?"; "couldn't decide how else it could be done"
    
3. (usually used with `or') if not, then
   "watch your step or else you may fall"; "leave or else I'll get angry"

Encyclopedia: Else