As she punched her mother all the pent-up frustration of the last few years rose to the surface.

News of a grain shortage was met with skepticism and frustration rose from higher prices.

But in the last few years, as frustration has risen, the government has taken a tougher line.

But all the while, frustration and anger was rising among the Ethiopians.

"We thought we had voted them out," she said, frustration rising in her voice.

"Jenny," I said, the frustration rising in my voice.

Nik's frustration at not finding any trail was rising to something stronger than irritation.

Suddenly, all the frustration of the past weeks rose to the surface.

The old familiar frustration rose in his throat.

While the Government gropes for economic answers, popular frustration has been rising.