In lang=en terms the difference between swing and veer
is that
swing is in dancing, to turn around in a small circle with one's partner, holding hands or arms while
veer is to turn.
In nautical|lang=en terms the difference between swing and veer
is that
swing is (nautical) to turn round by action of wind or tide when at anchor while
veer is (nautical) to change direction into the wind; to ship.
As verbs the difference between swing and veer
is that
swing is to rotate about an off-centre fixed point while
veer is (obsolete|nautical) to let out (a sail-line), to allow (a sheet) to run out or
veer can be to change direction or course suddenly; to swerve.
As nouns the difference between swing and veer
is that
swing is the manner in which something is swung while
veer is a turn or swerve; an instance of veering.