The Only Use of
sentinel
in
Roll of Thunder, Hear My Cry
- Papa rubbed his moustache and looked up at the trees standing like sentinels on the edge of the hollow, listening.
p. 175.0sentinels = people who stand guard
Definitions:
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(1)
(sentinel) a person who stands guard or looks out for something
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(2)
(meaning too rare to warrant focus) Much more rarely, sentinel can be used as a verb meaning to stand guard, or provide or post a guard; or to look out for something.
As a proper noun, Sentinel is sometimes used in the name of a newspaper to indicate that the newspaper is looking out for news the public would want.