The Collaborative International Dictionary of English v.0.48:

Finally \Fi"nal*ly\, adv.
   1. At the end or conclusion; ultimately; lastly; as, the
      contest was long, but the Romans finally conquered.
      [1913 Webster]

            Whom patience finally must crown.     --Milton.
      [1913 Webster]

   2. Completely; beyond recovery.
      [1913 Webster]

            Not any house of noble English in Ireland was
            utterly destroyed or finally rooted out. --Sir J.
                                                  Davies.
      [1913 Webster]

WordNet (r) 3.0 (2006):

finally
    adv 1: after an unspecified period of time or an especially long
           delay [syn: finally, eventually]
    2: as the end result of a succession or process; "ultimately he
       had to give in"; "at long last the winter was over" [syn:
       ultimately, finally, in the end, at last, at long
       last]
    3: the item at the end; "last, I'll discuss family values" [syn:
       last, lastly, in conclusion, finally]

Moby Thesaurus II by Grady Ward, 1.0:

43 Moby Thesaurus words for "finally":
   absolutely, accordingly, and so, as a consequence, as a result,
   as things go, as times go, at last, at length, at long last,
   at the end, at the last, completely, conclusively, consequently,
   decisively, definitely, definitively, eventually, for all time,
   for good, in conclusion, in fine, inconsequence, inevitably,
   inexorably, irrevocably, it follows that, last, lastly, naturally,
   naturellement, necessarily, of course, of necessity, once for all,
   someday, sometime, somewhen, sooner or later, therefore,
   ultimately, yet