Meaning : Raise.

Example : Up the ante.

Meaning : Spatially or metaphorically from a lower to a higher position.

Example : Look up!.
The music surged up.
The fragments flew upwards.
Prices soared upwards.
Upwardly mobile.

Synonyms : upward, upwardly, upwards

Meaning : To a higher intensity.

Example : He turned up the volume.

Meaning : Nearer to the speaker.

Example : He walked up and grabbed my lapels.

Meaning : To a more central or a more northerly place.

Example : Was transferred up to headquarters.
Up to Canada for a vacation.

Meaning : To a later time.

Example : They moved the meeting date up.
From childhood upward.

Synonyms : upward, upwards

Meaning : Being or moving higher in position or greater in some value. Being above a former position or level.

Example : The anchor is up.
The sun is up.
He lay face up.
He is up by a pawn.
The market is up.
The corn is up.

Meaning : Out of bed.

Example : Are they astir yet?.
Up by seven each morning.

Synonyms : astir

Meaning : Getting higher or more vigorous.

Example : Its an up market.
An improving economy.

Synonyms : improving

Meaning : Extending or moving toward a higher place.

Example : The up staircase.
A general upward movement of fish.

Synonyms : upward

Meaning : (usually followed by `on' or `for') in readiness.

Example : He was up on his homework.
Had to be up for the game.

Meaning : Open.

Example : The windows are up.

Meaning : (used of computers) operating properly.

Example : How soon will the computers be up?.

Meaning : Used up.

Example : Time is up.