| 释义 |
WordReference Random House Learner's Dictionary of American English © 2024sen•ti•nel /ˈsɛntənəl/USA pronunciation n. [countable]- a person or thing that guards;
sentry.
WordReference Random House Unabridged Dictionary of American English © 2024sen•ti•nel (sen′tn l),USA pronunciation n., v., -neled, -nel•ing or (esp. Brit.) -nelled, -nel•ling. n. - a person or thing that watches or stands as if watching.
- Militarya soldier stationed as a guard to challenge all comers and prevent a surprise attack:to stand sentinel.
- ComputingAlso called tag. a symbol, mark, or other labeling device indicating the beginning or end of a unit of information.
v.t. - to watch over or guard as a sentinel.
- Italian sentinella, derivative of Old Italian sentina vigilance (Latin sent(īre) to observe) + -īna -ine2)
- Middle French sentinelle
- 1570–80
- 1, 2.See corresponding entry in Unabridged sentry, guard, watch, lookout.
Collins Concise English Dictionary © HarperCollins Publishers:: sentinel /ˈsɛntɪnəl/ n - a person, such as a sentry, assigned to keep guard
vb ( -nels, -nelling, -nelled)(transitive)- to guard as a sentinel
- to post as a sentinel
Etymology: 16th Century: from Old French sentinelle, from Old Italian sentinella, from sentina watchfulness, from sentire to notice, from Latin |