drop-off

noun drop-offs · dropoff

1. A sudden downward slope or cliff.
2. The precipitous outer side of a coral reef, facing the open sea.
3. A decrease; especially, a sudden one. There has been an unexplained drop-off in sales this quarter.

   Similar: falloff, step-off

4. A delivery; the act of leaving a package, etc. Starting tomorrow, they'd do dropoffs and pickups instead of leaving their vehicles unguarded.
5. US, especially A space reserved outside a bus or railway station for vehicles stopping to drop off passengers for onward transit. Fifty car parking spaces, a drop-off point, five spaces for blue badge holders and lighting masts are all included in the plan, as is cycle parking on the station forecourt and ticket vending machines.

   Similar: set-down, setting-down

6. A time during which passengers, such as school children, are dropped off; the event or act of dropping them off. These signs are friendly reminders for road users to slow down during drop-off and pick-up.
7. Internet A visitor to a website who ceases to continue using and navigating around the site after reaching some specified page; or such an act of cessation. We're seeing a lot of drop-offs on the shop product pages; why aren't people making purchases?