Слово "sentry". Англо-русский словарь Мюллера

Only sentries, I expect.

"There is no sentry."

Without warning the pilot jammed on the brakes. The car skidded to a stop outside a reinforced sentry booth.

That night, from the balcony of his bedroom, he gazed down on the roof of the town—as if inlaid with honeycomb of jet, ivory, and gold; and, long after, he lay awake, listening to the cry of the sentry as the hours struck, and forming in his head these lines:

Tired though we all were, two were sent out for firewood; two more were set to dig a grave for Redruth; the doctor was named cook; I was put sentry at the door; and the captain himself went from one to another, keeping up our spirits and lending a hand wherever it was wanted.

"There is no sentry."