After two glasses of whiskey, Tom soon dropped off in front of the television.
And when the Boy dropped off to sleep, the Rabbit would snuggle down close under his little warm chin and dream, with the Boy's hands clasped close round him all night long.1921 June, Margery Williams, “The Velveteen Rabbit: Or How Toys Become Real”, in Harper’s Bazar, volume LVI, number 6 (2504 overall), New York, N.Y.: International Magazine Company, →ISSN, →OCLC:
2
US, Especially, Idiomatic To deliver; to deposit or leave; to allow passengers to alight.
Can you drop the kids off at school?
I'll drop off your books when I see you tonight.
1 more example
After dropping off travellers at Foregate Street, my train terminates at Shrub Hill - a station which boasts one of the best selection [sic] of semaphore signals left in the country.2020 December 2, Paul Bigland, “My weirdest and wackiest Rover yet”, in Rail, page 67:
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.
4
A delivery; the act of leaving a package, etc.
Starting tomorrow, they'd do dropoffs and pickups instead of leaving their vehicles unguarded.2014, K. G. MacGregor, Anyone But You:
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.2020 May 20, “Network News: Plan submitted for £18.6 million station at Soham”, in Rail, page 21:
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.2021 February 1, Living in Brisbane, Brisbane, page 1:
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?