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, recede, lose, fall back, fall behind
Definition: retreat
Antonyms: make headway, win, pull ahead, get ahead, gain, gain ground, advance
Definition: obtain advantages, such as points, etc.