decreaseThe tests show that the tumour has decreased in size since we started treatment.
lessenA healthy diet lessens your risk for cardiovascular disease.
reduceThey've just reduced the price.
bring downThey are bringing down their prices.
dropStock prices dropped today after the company's announcement.
fallUnemployment has fallen to six percent in the last year.
go downPrices always go down in January.
come downHas her fever come down at all?
plummetTemperatures last night plummeted.
plungeTemperatures last night plunged below zero.
crashAfter bad news from the Federal Reserve, the markets crashed.
cratermainlyUSAn excess of supply is going to crater the entire market.
dwindleThe number of students in the school has dwindled to around 200.
declineThe number of members has declined by 25 per cent over the last 30 years.
shrinkForests have shrunk to almost half the size they were 20 years ago.
contractAs the metal cools, it contracts.