The Collaborative International Dictionary of English v.0.48:

aquavit \aquavit\ n.
   1. 1 a Scandinavian liquor usually flavored with caroway
      seeds; -- also called akvavit.

   Syn: akvavit.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

aquavit
    n 1: Scandinavian liquor usually flavored with caraway seeds
         [syn: aquavit, akvavit]