Main entry: flake out, fall asleep, nod off, dope off, doze off, drift off, drop off, drowse off
Definition: change from a waking to a sleeping state
Usage: he always falls asleep during lectures
Main entry: drop off
Definition: fall or diminish
Usage: The number of students in this course dropped off after the first test
Main entry: drop away, drop off, fall away, slip
Definition: get worse
Usage: My grades are slipping
Main entry: drop off, recede, lose, fall back, fall behind
Definition: retreat
Main entry: discharge, drop, drop off, put down, set down, unload
Definition: leave or unload
Usage: unload the cargo; drop off the passengers at the hotel