'Landslide' definitions:

Definition of 'landslide'

From: WordNet
noun
An overwhelming electoral victory; "Roosevelt defeated Hoover in a landslide"
noun
A slide of a large mass of dirt and rock down a mountain or cliff [syn: landslide, landslip]

Definition of 'Landslide'

From: GCIDE
  • Landslide \Land"slide`\, Landslip \Land"slip`\, n.
  • 1. The slipping down of a mass of land from a mountain, hill, etc. [1913 Webster]
  • 2. The land which slips down. [1913 Webster]
  • 3. An election victory in which the winning candidate receives a substantial majority of the votes, usually meaning at least ten per cent more than any opposing candidate. [PJC]
  • 4. Any overwhelming victory. [PJC]

Synonyms of 'landslide'

From: Moby Thesaurus