keeping watch

Police and fire fighters worked around the clock, not only trying to stifle the growing conflagration but keeping watch for potential looters.

"At some point we were exhausted and stopped to rest. We took turns sleeping and keeping watch."

A few dozen protesters have blocked off the station’s access road and take turns keeping watch from the outside.

Thai troops were keeping watch in Mae Sot on Friday, especially near the bridges.

The great gray owl has long been thought of as a sentinel of the Alaska wilderness, keeping watch over snow-laden forests as far north as the Brooks Range, well away from human populations.