Synonym of set: to move toward the western horizon, to go down.
Used other than figuratively or idiomatically: see go, west.
To move to the American West, particularly (historical) during the 19th century era.
To leave the ground and begin flight; to ascend into the air.
To depart.
To absent oneself from (work or other responsibility), especially with permission.
To quantify.
To remove.
To imitate, often in a satirical manner.
To become successful, to flourish.