Learn how to say Southwestern correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word south-west:
1 (usually the south-west) the direction towards the point of the horizon midway between south and west:
clouds uncoiled from the south-west
the compass point corresponding to south-west.
2the south-western part of a country, region, or town:
the beach is in the south-west of the island
1lying towards, near, or facing the south-west:
the south-west tower collapsed in a storm
(of a wind) blowing from the south-west.
2of or denoting the south-western part of a specified country, region, or town or its inhabitants:
to or towards the south-west:
they drove directly south-west