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SENTINEL definition: 1. a person employed to guard something: 2. Sentinel is also used in the names of some newspapers…. Learn more.
Sentinel definition: a person or thing that watches or stands as if watching. See examples of SENTINEL used in a sentence.
noun. sen· ti· nel ˈsent-nəl. ˈsen-tə-nəl. Synonyms of sentinel. : sentry. sentinel. 2 of 2. verb. sentineled or sentinelled; sentineling or sentinelling. transitive verb. 1. : to watch over as a sentinel. 2. : to furnish with a sentinel. 3. : to post as sentinel. Synonyms. Noun. custodian. guardian. keeper. lookout. minder. picket. sentry. warden.
A sentinel is a guard, a lookout, a person keeping watch. It's often a soldier, but not always. If you're watching a pot, waiting for it to boil, you're standing sentinel over it — and incidentally, it won't boil until you leave.
noun. 1. a person or animal set to guard a group; specif., a sentry. verb transitive Word forms: ˈsentineled or ˈsentinelled, ˈsentineling or ˈsentinelling.
1. a person, such as a sentry, assigned to keep guard. 2. (Computer Science) computing a character used to indicate the beginning or end of a particular block of information. vb ( tr) , -nels, -nelling or -nelled. 3. to guard as a sentinel. 4. to post as a sentinel. 5. to provide with a sentinel.
Definition of sentinel noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
