A natural disaster that involves the breakup and downhill flow of rock, mud, water and anything caught in the path. / A vote won by a wide or overwhelming majority.

To undergo a landslide.

plural of landslide

(idiomatic) with big margins, with a huge difference

plural of landsliding

landslide

simple past tense and past participle of landslide

(politics) an overwhelming victory in an election

plural of landslide victory