drop off

(noun) a noticeable deterioration in performance or quality. Synonyms: slump, slack, drop-off, falloff, falling off. Examples: "The team went into a slump." "A gradual slack in output." "A drop-off in attendance." "A falloff in quality."

(noun) a steep high face of rock. Synonyms: cliff, drop, drop-off. Examples: "He stood on a high cliff overlooking the town." "A steep drop."

(noun) a change downward. Synonyms: decrease, lessening, drop-off. Examples: "There was a decrease in his temperature as the fever subsided." "There was a sharp drop-off in sales."

(verb) fall or diminish. Synonyms: drop off. Example: "The number of students in this course dropped off after the first test."

(verb) change from a waking to a sleeping state. Synonyms: fall asleep, dope off, flake out, drift off, nod off, drop off, doze off, drowse off. Example: "He always falls asleep during lectures."

(verb) leave or unload. Synonyms: drop, drop off, set down, put down, unload, discharge. Examples: "Unload the cargo." "Drop off the passengers at the hotel."

(verb) retreat. Synonyms: fall back, lose, drop off, fall behind, recede.

(verb) get worse. Synonyms: slip, drop off, drop away, fall away. Example: "My grades are slipping."