drop-off
1. [ noun ] a steep high face of rock
Synonyms: cliff drop
Examples:

"he stood on a high cliff overlooking the town" "a steep drop"

Related terms: geological_formation precipice crag
2. [ noun ] a noticeable decline in performance
Synonyms: slump falloff falling_off slack
Examples:

: "the team went into a slump" "a sudden slack in output" "a drop-off in attendance" "a falloff in automobile sales"

Related terms: decline deterioration slow slump slack slake
3. [ noun ] a change downward
Synonyms: lessening decrease
Examples:

"there was a decrease in his temperature as the fever subsided" "there was a sharp drop-off in sales"

Related terms: increase change sinking waning dwindling attrition shrinking casualty drop_off
Similar spelling:   drop_off
  drive_off