only 1 use
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Definition
a person who stands guard or looks out for something
- Then, leaning on his hand his watchful head, The hoary monarch raised his eyes and said: "What art thou, speak, that on designs unknown, While others sleep, thus range the camp alone; Seek'st thou some friend or nightly sentinel?Book 10 (16% in)
There are no more uses of "sentinel" in The Iliad by Homer - (translated by: Pope).
Typical Usage
(best examples)