But in fact, when asked, a group of children identified their principal worries as grades, having friends, and being teased or bullied or embarrassed.

Just a few weeks ago, this potential for intrusion was the principal worry among privacy advocates.

My principal worry is that if things go awry, the both of us would be swiftly and certainly killed.

In his seventieth and last year of life my father's principal worry was whether he had enslaved more souls than he had liberated.

Major Petrovich's principal worry is an impending assault by the Wehrmacht.

The purchasing executives also expressed widespread uncertainty about the economy, with the principal worry being the threat of recession or a severely slowing economy.

"I don't think the principal worry of the great popes is deciding what to wear," he said.

But the principal worries have been over misdeeds more sinister than accounting fraud or tax evasion.

His principal worry was a system failure in one of the three aircraft.

His principal worry was, could God hear prayers spoken outside of normal space-time?