Main Entry:

belt·way

Pronunciation:

\ˈbelt-ˌwā\

Function:

noun

Usage:

often attributive

Date:

circa 1952

1: a highway skirting an urban area2capitalized : the political and social world of Washington, D.C., viewed especially as insular and exclusive <understanding better than Beltway insiders what really interests voters — L. I. Barrett>