Sentinel



GRE 蓝宝 Barron

解释

GRE 红宝书

• n.哨兵, 卫兵
• ［英］ n.哨兵, 卫兵 ( sentry; lookout)
• ［类］ sentinel : watchful / epicure : discriminating ( 卫兵的特点是警戒 / 美食家的特点是有识别力的)

Webster Collegiate

I. noun

• Etymology: Middle French sentinelle, from Old Italian sentinella, from sentina vigilance, from sentire to perceive, from Latin
• Date: 1579
• sentry

II. transitive verb (-neled or -nelled; -neling or -nelling)

• Date: 1593
• 1. to watch over as a sentinel
• 2. to furnish with a sentinel
• 3. to post as sentinel

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