[1] : WordNet (r) 2.0

long shot
     n 1: a venture that involves great risk but promises great
          rewards
     2: a contestant that is unlikely to win

[2] : Moby Thesaurus II by Grady Ward, 1.0

63 moby thesaurus words for "long shot":
   accident, adventure, bare possibility, boom shot, casualty,
   chance hit, close-up, contingency, contingent, dark horse,
   deuce shot, equivalent odds, even break, even chance,
   fighting chance, fluke, follow-focus shot, fortuity,
   freak accident, full shot, gambling chance, good chance,
   group shot, hap, happening, happenstance, hardly a chance, hazard,
   hundred-to-one shot, improbability, kinescope, little chance,
   little opportunity, long odds, lucky shot, matte shot, medium shot,
   motion picture, no chance, odds, off chance, outside chance,
   pan shot, panoramic shot, poor bet, poor lookout, poor possibility,
   poor prospect, price, process shot, rap shot, remote possibility,
   retake, short odds, shot, slim chance, small chance, square odds,
   take, travel shot, trucking shot, unlikelihood, zoom shot

Dead Shot >> D Words
Dead Shot, definition of term: Dead Shot
dead+shot_pag1.html

Crack Shot >> C Words
Crack Shot, definition of term: Crack Shot
crack+shot_pag1.html

Case Shot >> C Words
Case Shot, definition of term: Case Shot
case+shot_pag1.html

Booster Shot >> B Words
Booster Shot, definition of term: Booster Shot
booster+shot_pag1.html