up

adverb

1. Indicating movement towards or location at a higher place or position. Away from the surface of the Earth or other planet; in opposite direction to the downward pull of gravity.

   “I looked up and saw the airplane overhead.”

2. Away from the surface of the Earth or other planet; in opposite direction to the downward pull of gravity.

   “I looked up and saw the airplane overhead.”

3. To or at a physically higher or more elevated position.

   “All day we climbed up and up.”

4. To an upright or erect position.

   “sit up; stand up; get up out of bed”

preposition

1. Toward the top of.

   “The cat climbed up the tree.”

2. Toward the center, source, or main point of reference; toward the end at which something is attached.

   “The information made its way up the chain of command to the general.”

3. From south to north of.

   “We sailed up the East Coast of England from Ipswich to South Shields.”

4. Further along (in any direction).

   “Go up the street until you see the sign.”

adjective

1. Facing upwards.

   “Turn the cloth over so that the patterned side is up.”

2. On or at a physically higher level.

   “The flood waters are up again across large areas of the country.”

3. Headed or designated to go upward (as an escalator, stairway, elevator etc.) or toward (as a run-up).

   “Where is the up escalator?”

4. Fitted or fixed at a high or relatively high position, especially on a wall or ceiling.

   “All the notices are up now.”

noun

1. The direction opposed to the pull of gravity.

   “Up is a good way to go.”

2. A positive thing, or a time or situation when things are going well.

   “I hate almost everything about my job. The only up is that it's so close to home.”

3. An up quark.

4. An upstairs room of a two story house.

   “She lives in a two-up two-down.”

verb

1. To physically raise or lift.

   “We upped anchor and sailed away.”

2. To increase the level or amount of.

   “If we up the volume, we may be able to hear what he says.”

3. To promote.

   “It wasn’t long before they upped him to Vice President.”

4. To rise to a standing position; hence, by extension, to act suddenly; see also up and.

   “She was sitting there quietly, then all of a sudden she upped and left.”