Merriam-Webster Collegiate Dictionary - down

 I. adverb  Etymology: Middle English doun, from Old English dune, short for adune, of dune, from a- (from of), of off, from + dune, dative of dun hill  Date: before 12th century  1.  a.  (1) toward or in a lower physical position  (2) to a lying or sitting position  (3) toward or to the ground, floor, or bottom  b. as a ~ payment paid $10 ~  c. on paper put ~ what he says  2. in a direction that is the opposite of up: as  a. southward  b. to or toward a point away from the speaker or the speaker's point of reference  c. in or into the stomach can't keep food ~  3. to a lesser degree, level, or rate cool ~ tensions  4. to or toward a lower position in a series  5.  a. to or in a lower or worse condition or status  b. — used to indicate thoroughness or completion dusted ~ the house described him ~ to his haircut  6. from a past time stories passed ~ by word of mouth  7. to or in a state of less activity or prominence  8. to a concentrated state got the report ~ to three pages  9. into defeat voted the motion ~  II. preposition  Date: 14th century ~ along, around, through, toward, in, into, or on fell ~ the stairs ~ the years  III. verb  Date: 1562  transitive verb  1. to cause to go or come ~: as  a. bring ~ 1 ~ed the enemy helicopter  b. consume 3 ~ing slices of pizza  2. to cause (a football) to be out of play  3. defeat ~ a proposal  intransitive verb to go ~  IV. adjective  Date: circa 1565  1.  a.  (1) occupying a low position; specifically lying on the ground ~ timber  (2) directed or going ~ward attendance is ~  b. lower in price  c. not being in play in football because of wholly stopped progress or because the officials stop the play the ball was ~  d. defeated or trailing an opponent (as in points scored) ~ by two runs  e. baseball out two ~ in the top of the third inning  2.  a. reduced or low in activity, frequency, or intensity a ~ economy  b. not operating or able to function the computer is ~  c. depressed, dejected feeling a bit ~; also depressing a ~ movie  d. sick ~ with flu  3. done, finished eight ~ and two to go  4. completely mastered had her lines ~ — often used with pat got the answers ~ pat  5.  a. slang cool 7  b. slang understanding or supportive of something or someone — usually used with with trying to prove that they were ~ with hip-hop culture — J. E. White  6. being on record you're ~ for two tickets  V. noun  Date: 1710  1. descent, depression  2. an instance of putting ~  3.  a. a complete play to advance the ball in football  b. one of a series of four attempts in American football or three attempts in Canadian football to advance the ball 10 yards  4. chiefly British dislike, grudge  5. ~er  6. a fundamental quark that has an electric charge of - 1/3 and that is one of the constituents of a nucleon  VI. noun  Etymology: Middle English doun hill, from Old English dun  Date: 14th century  1. an undulating usually treeless upland with sparse soil — usually used in plural  2. often capitalized a sheep of any breed originating in the ~s of southern England  VII. noun  Etymology: Middle English doun, from Old Norse dunn  Date: 14th century  1. a covering of soft fluffy feathers; also these feathers  2. something soft and fluffy like ~ DOWN  I. noun  Date: 1994 ~ syndrome — usually used attributively a ~ baby  II. geographical name  1. district SE Northern Ireland, established 1974 area 250 square miles (650 square kilometers), population 57,511  2. traditional county SE Northern Ireland