The Collaborative International Dictionary of English v.0.48:

Finis \Fi"nis\, n. [L.]
   An end; conclusion. It is often placed at the end of a book.
   [1913 Webster]

WordNet (r) 3.0 (2006):

finis
    n 1: the temporal end; the concluding time; "the stopping point
         of each round was signaled by a bell"; "the market was up
         at the finish"; "they were playing better at the close of
         the season" [syn: stopping point, finale, finis,
         finish, last, conclusion, close]
    2: the concluding part of any performance [syn: finale,
       close, closing curtain, finis]

Moby Thesaurus II by Grady Ward, 1.0:

57 Moby Thesaurus words for "finis":
   Z, apodosis, catastrophe, ceasing, cessation, coda, conclusion,
   consummation, crack of doom, culmination, curtain, curtains, death,
   decease, denouement, destination, destiny, doom, effect, end,
   end point, ending, envoi, epilogue, eschatology, expiration, fate,
   final solution, final twitch, final words, finale, finality,
   finish, goal, izzard, last, last breath, last gasp, last things,
   last trumpet, last words, latter end, omega, payoff, period,
   peroration, quietus, resolution, resting place, stoppage,
   stopping place, swan song, term, terminal, termination, terminus,
   windup