But in recent years, suburban sprawl westward from Philadelphia has invaded their turf.

When children invade his turf, he builds a sturdy fence.

Subtly, I could feel the man invading my turf, though his manner remained benign.

But many in the industry say that everyone is invading everyone else's turf.

This anemic demand has forced companies to invade each other's turf to try to keep sales and profits growing.

"They need to find ways of competing against cable operators invading their turf."

"It's more likely that it was just a case of simple drunken stupidity and invading someone else's turf," he said.

Across the nation, telephone and cable television companies are starting to invade each other's traditional turf.

The cold tone of his voice said that by stepping onto the station, she was invading his turf.

United would seem a less likely candidate given its decision to invade British Airways' turf.