cliff

/klษชf/

IPA: /K L IH1 F/

noun
  1. 1

    A vertical (or nearly vertical) rock face.

  2. 2

    A point where something abruptly fails or decreases in value etc.

Synonyms

noun
  1. 1

    A symbol found on a musical staff that indicates the pitches represented by the lines and the spaces on the staff

Source: https://en.wiktionary.org/wiki/cliff