down

adverb:in a descending direction; toward or into a lower position or level
- She walked down the stairs carefully.
adverb:from a standing to a sitting or horizontal position
- Please sit down and make yourself comfortable.
adverb:to a lower intensity, volume, or activity level
- Turn the music down, it's too loud.
adverb:in or into a state of depression, weakness, or defeat
- He felt down after hearing the bad news.
adverb:in writing; on paper
- I wrote down the important points from the lecture.
adjective:moving or extending downward
- Take the down escalator to the ground floor.
adjective:reduced or decreased; lower than a previous amount or level
- The company announced a down price for its new product line.
adjective:depressed or unhappy
- She's been feeling down lately.
adjective:not functioning or operating, especially of a computer system
- The website is down for maintenance.
adjective:being behind in a score or ranking; having fewer points than the opponent
- The team was down 3‑1 at halftime but rallied to win the game.
preposition:along the course or extent of
- There are several shops down the street.
verb:to drink quickly, especially in a single gulp
- He downed a glass of water after his run.
noun:soft, fine feathers, especially from a young bird
- The pillow was stuffed with goose down.