Etymology: partly from Middle English up upward, from Old English ūp; partly from Middle English uppe on high, from Old English; both akin to Old High German ūf up and probably to Latin sub under, Greek hypo under, hyper over — more at over
Date: before 12th century
(1) in or into a higher position or level; especially away from the center of the earth
(2) from beneath the ground or water to the surface
(3) from below the horizon
(4) upstream 1
(5) in or into an upright position <sit up>; especially out of bed b. upward from the ground or surface <pull up a daisy> c. so as to expose a particular surface 2. with greater intensity <speak up> 3. a. in or into a better or more advanced state b. at an end <your time is up> c. in or into a state of greater intensity or excitement d. to or at a greater speed, rate, or amount <prices went up> e. in a continual sequence ; in continuance from a point or to a point <from third grade up> <at prices of $10 and up> <up until now> 4. a. (1) into existence, evidence, prominence, or prevalence (2) into operation or practical form b. into consideration or attention <bring up for discussion> 5. into possession or custody 6. a. entirely, completely <button up your coat> b. — used as an intensifier <clean up the house> 7. in or into storage ; by <lay up supplies> 8. a. so as to arrive or approach b. in a direction conventionally the opposite of down: (1) to windward (2) northward (3) to or at the top (4) to or at the rear of a theatrical stage 9. in or into parts 10. to a stop — usually used with draw, bring, fetch, or pull 11. for each side <the score is 15 up> II. adjective Date: before 12th century 1. a. risen above the horizon <the sun is up> b. standing c. being out of bed d. relatively high <the river is up> <was well up in her class> e. being in a raised position ; lifted <windows are up> f. being in a state of completion ; constructed, built g. having the face upward h. mounted on a horse <a new jockey up> i. grown above a surface <the corn is up> j. (1) moving, inclining, or directed upward <the up escalator> (2) bound in a direction regarded as up 2. a. (1) marked by agitation, excitement, or activity (2) positive or upbeat in mood or demeanor b. being above a former or normal level (as of quantity or intensity) <attendance is up> <the wind is up> c. exerting enough power (as for operation) <sail when steam is up> d. ready; specifically highly prepared e. going on ; taking place <find out what is up> 3. a. risen from a lower position <men up from the ranks> b. being at the same level or point <did not feel up to par> c. (1) well informed ; abreast <up on the news> (2) being on schedule <up on his homework> d. being ahead of one's opponent 4. a. presented for or undergoing consideration <contract up for negotiation>; also charged before a court <up for robbery> b. being the one whose turn it is <you're up next> III. preposition Date: 1509 1. a. — used as a function word to indicate motion to or toward or situation at a higher point of <went up the stairs> b. up into or in the <was hid away up garret — Mark Twain> 2. a. in a direction regarded as being toward or near the upper end or part of <lives a few miles up the coast> <walked up the street> b. toward or near a point closer to the source or beginning of <sail up the river> 3. in the direction opposite to <sailed up the wind> IV. noun Date: 1536 1. one in a high or advantageous position 2. an upward slope 3. a period or state of prosperity or success 4. upper III 5. a fundamental quark that has an electric charge of +2/3 and that is one of the constituents of a nucleon V. verb (upped or in intransitive verb 2 up; upped; upping; ups or in intransitive verb 2 up) Date: 1643 intransitive verb 1. a. to rise from a lying or sitting position b. to move upward ; ascend 2. — used with and and another verb to indicate that the action of the following verb was either surprisingly or abruptly initiated <he up and quit his job> transitive verb 1. raise, lift 2. a. to advance to a higher level: (1) increase (2) promote 1a b. raise 8d, e
New Collegiate Dictionary. 2001.