plural of down
"The goose was plucked to collect its soft white downs for use in winter bedding."
Third-person singular simple present indicative form of down
"He downs his coffee quickly before the meeting starts."
In plain English: To down something means to drink it very quickly, usually when you are trying not to show that you enjoy it or want to get rid of it fast.
"The company decided to downsize its workforce after losing several major contracts."
the South Downs.
"We walked along the grassy downs of the South Downs to enjoy the view over the coast."