—drop /drɒp/ aep /drɑːp/
noun (FALL)
F0 [C] the act of delivering things such as supplies, medicine, etc., often by dropping them from an aircraft:
» a food drop» The helicopter made a drop of much-needed supplies to the stranded hikers.Thesaurus+: ↑Delivering and despatchingThesaurus+: ↑Emergency services in generalF0 [C] the situation in which something is left in a place and later collected by someone else, usually a spy
Thesaurus+: ↑Transferring and transporting objectsThesaurus+: ↑Spying and espionagenoun (LOWER)
C1 [C usually singular] the distance from one thing to something lower:
» There's a drop of two metres from the window to the ground.Thesaurus+: ↑Measurements in generalThesaurus+: ↑Describing angles, lines and orientationsB2 [C usually singular] a reduction in the amount or level of something:
» The recent drop in magazine subscriptions is causing some concern.Thesaurus+: ↑Measurements in generalThesaurus+: ↑Describing angles, lines and orientations• • •
Extra Examples:» They forecast a large drop in unemployment over the next two years.» In an emergency you could get out through a window, but it would be a nasty drop.» He took a drop in salary when he changed jobs.» Tour operators have reported a drop in bookings.» She looked over the cliff and found she was standing at the edge of a vertical drop.noun (SMALL AMOUNT)
B1 [C] a small round-shaped amount of liquid:
» I thought I felt a drop of rain.» There were little drops of paint on the kitchen floor.See picture: a drop of olive oil 
Thesaurus+: ↑Words meaning small pieces and amounts
F0 [S] a small amount of liquid you can drink:
» I'll have a drop more juice, please.» "Would you like some milk?" "Just a drop, please."Thesaurus+: ↑Words meaning small pieces and amountsThesaurus+: ↑Drinks - general wordsdrops [plural]F0 liquid medicine given in very small amounts:
» eye/nose/ear dropsSee picture: drops 
Thesaurus+: ↑Medicine in different forms
F0 [C] MAINLY UK a small piece of sweet food made of sugar:
» fruit/pear drops» chocolate dropsThesaurus+: ↑Sweets• • •
Extra Examples:» I noticed drops of water plopping onto the carpet.» We placed saucepans on the floor to catch the drops of water coming through the roof.» The drop of red dye diffused slowly in the water.» Could I have a drop more water, please?» Would you like a drop more vino?verb (-pp-) (FALL) ↑Verb Endings for drop
B1 [I or T] to fall or to allow something to fall:
» She dropped her keys.» I'm always dropping things.» Amanda dropped her sunglasses in/into the fountain.» The book dropped from/off the shelf.» Don't drop it!/Don't let it drop!Thesaurus+: ↑Falling and dropping , ↑Moving downwardsdrop deadC2 to die suddenly and unexpectedly:
» He dropped dead on the squash court at the age of 43.Thesaurus+: ↑Death and dyingdrop sb a line INFORMALF0 to write someone a letter, especially a short informal one:
» Just drop me a line when you've decided on a date.Thesaurus+: ↑Communicating and keeping in touchdrop (sb) a hint INFORMALF0 to tell someone something in a way that is not direct:
» Margaret dropped a hint that she'd like to come to the party.Thesaurus+: ↑Suggestions and proposalsdrop your aitches/h's UKF0 to not pronounce the letter h at the beginning of words in which it should be pronounced
Thesaurus+: ↑Ways of speaking• • •
Extra Examples:» A man rushed past and jogged her elbow, making her drop the bag.» She dropped her cup and it smashed to pieces on the stone floor.» Helicopters dropped leaflets over the city.» She accidentally dropped her ring down a drain in the road.» Witnesses say that there was an explosion and then the plane dropped like a stone to earth.verb (-pp-) (STOP) ↑Verb Endings for drop
B2 [T] to stop doing or planning something, especially an activity:
» I'm going to drop yoga and do aerobics instead.» Can you drop what you're doing and help me with this report?Thesaurus+: ↑Stop having or doing somethingF0 [T] to stop including someone in a group or team:
» He's been dropped from the team because of injury.Thesaurus+: ↑Removing and getting rid of things , ↑Taking things away from someone or somewhere• • •
Extra Examples:» The police have had to drop charges against her because they couldn't find any evidence.» She walked free after the charges against her were dropped.» He was dropped from the team after failing to turn up for a drugs test.» You can't just show up at my work and expect me to drop everything.» The band was dropped by their record label because of creative differences.verb [I or T] (-pp-) (LOWER) ↑Verb Endings for drop
► B2 to move to a lower level, or cause something to move to a lower level: » The water level in the flooded region has finally begun to drop.» The land drops (away) (= slopes down) sharply behind the barrier.» We've had to drop our prices because of the recession.Thesaurus+: ↑Becoming and making smaller or less , ↑Becoming and making less strong• • •
Extra Examples:» Temperatures can drop well below freezing in midwinter.» Let's cut our losses and sell the business before prices drop even further.» The hurricane was downgraded to a tropical storm when its speed dropped to 70mph.» He thinks we should sell the business before prices drop even further.» Fish struggle for survival when the water level drops in the lake.Common mistake: drop! Drop meaning 'move to a lower level' is not usually followed by the adverb 'down', don't say 'drop down', say drop:✗ The rate of unemployment dropped down significantly.» The rate of unemployment dropped significantly.verb [T + adv/prep] (-pp-) (TAKE) ↑Verb Endings for drop
► C1 to take someone to a particular place, usually in a car, and leave them there: » They dropped me off at the main entrance.» I dropped him at the library and went shopping.Thesaurus+: ↑Transferring and transporting objectsThesaurus+: ↑Taking someone somewhere or telling them the way