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 flee by turning one's back.
To evade, to equivocate using subterfuge; to obfuscate in a deliberate manner.
To change sides or affiliation; to apostatize.