noun, noun or participle which takes 'suru', intransitive verb
going south; moving southward
Used for movement toward the south, often of weather fronts, typhoons, or military forces. Can be used as a noun or with する as an intransitive verb.
台風はゆっくりと南下している。
The typhoon is slowly moving southward.
寒気の南下に伴い、気
Temperatures will drop as the cold air moves south.