drop off
Pronunciation:
verb
Definitions
To fall asleep.
Example: After two glasses of whiskey, Tom soon dropped off in front of the television.
To deliver; to deposit or leave; to allow passengers to alight.
Example: Can you drop the kids off at school?
To fall.
Example: The leaves were slowly dropping off the tree.
To lessen or reduce.
Example: Sales have dropped off in recent months.