'Skyscraper' definitions:

Definition of 'skyscraper'

From: WordNet
noun
A very tall building with many stories

Definition of 'Skyscraper'

From: GCIDE
  • Skyscraper \Sky"scrap`er\, n. (a) (Naut.) (1) A skysail of a triangular form. [Rare] (2) A name for the one of the fancy sails alleged to have been sometimes set above the skysail. [Obs.] (b) A very tall building, especially one over 20 stories high. (c) Hence, anything usually large, high, or excessive. [Slang or Colloq.] [Webster 1913 Suppl.]