Nounstone wall

Nounoverhanging cliff

Nounprecipice; cliff; bluff

Nounsteepness of a mountain

Nounsea cliff

Nounfault scarp; fault escarpment

Expressions (phrases, clauses, etc.), Nounfiscal cliff (e.g. potential 2013 US financial crisis); fiscal precipice

Expressions (phrases, clauses, etc.), Nounglass cliff (corporate leadership)

Noun2025 digital cliff; anticipated problem of antiquated systems and shortage of human resources in IT