Then can it be called a D.C. Suburb as in the Title?
No,but Loudon County could be considered a DC suburb despite not touching the city.I don't have the first clue where Loudon County is but your post seemed to suggest that simply because it doesn't touch DC it cannot be considered a suburb.
Perhaps I should have done more investigating to see exactly why you posted that comment.
The area around wdc is replete with government “workers” (active and retired), beltway bandits, lawyers. lobbyists, politician losers and their hangers-on that do their bidding...all of whom steal your money and live like royalty on your dime. Pathetic, no?