landslide

The downward sliding of a relatively dry mass of earth and rock.

The mass that slides.

An overwhelming majority of votes for a political party or candidate.

An election that sweeps a party or candidate into office.

A great victory.

A falling or sliding down of a mass of soil, detritus, or rock on a mountain-side.

The slipping down of a mass of land from a mountain, hill, etc.

The land which slips down.