south3 written abbreviation S
towards the south:
Most of the birds had already flown south.
a seaside town 99 km south of London
a south-facing garden
a) British English informalSG
in or to the southern part of England:
We moved down south about five years ago.
b) American English also down South
in or to the southern US states:
His sister lives down south.
3 American English informal
if a situation, organization, or set of standards goes south, it becomes very bad although it was once very good:
It seems like all our moral standards have just gone south.