Sun‧belt, the /ˈsʌnbelt/
the southern and southwestern parts of the US, from Virginia to South California. The name comes from the hot sunny climate in this area.
[TahlilGaran] Dictionary of Contemporary English ▲
sunbelt n.,
informal A portion of the southern United States where the winter is very mild in comparison to other states.
The Simpsons left Chicago for the sunbelt because of Jeff's rheumatism. [TahlilGaran] English Idioms Dictionary ▲