'cliffhanger' definitions:

Definition of 'cliffhanger'

(from WordNet)
noun
A contest whose outcome is uncertain up to the very end
noun
An episode that ends in suspense

Definition of 'cliffhanger'

From: GCIDE
  • cliffhanger \cliffhanger\ n. a contest whose outcome is uncertain up to the very end. [WordNet 1.5]
  • 2. an episode of a drama that ends in suspense. [WordNet 1.5]