noun, plural sen·tries.
Origin of sentry
Examples from the Web for sentries
The sentries of the corral were all stationed away outside of the place where that peculiar log was at work.The Red Mustang|William O. Stoddard
"They got sentries posted to keep us from goin up on deck," said someone.Three Soldiers|John Dos Passos
American sentries were at once placed on the battlements and along the Pasig, and perfect order was maintained.The Philippine Islands|Ramon Reyes Lala
The sentries on the bluff challenged, and received no answer.Pioneers Of France In The New World|Francis Parkman, Jr.
Not inside, sir, answered the orderly, theres a guard in front and sentries around the barracks over in the square.Secret Service|Cyrus Townsend Brady
British Dictionary definitions for sentries
noun plural -tries
Word Origin for sentry
Word Origin and History for sentries
1610s, originally "watchtower;" perhaps a shortened variant of sentinel, which had a variant form centrinel (1590s); or perhaps worn down from sanctuary, on notion of "shelter for a watchman." Meaning "military guard posted around a camp" is first attested 1630s. Sentry-box is from 1728.