watchman

n (pl -men / -mEn; -mEn/) person employed to guard a building (eg a bank, an office building or a factory), esp at night （受雇看守建筑物, 如银行、 办公楼或工厂的）警卫员, 看守人（尤指夜间的）.

wasteful, wastefully, wastefulness, wasteland, waster, wastrel, watch, watch out for, watch over, watch-dog, watch-night service, watch-strap (Brit) (US `watch-band), watch-tower, watchdog, watcher, watchful, watchfully, watchfulness, watching brief, watchmaker, watchword, water, water point, water polo, water ski, water-bed, water-bird, water-biscuit, water-borne, water-bottle, water-buffalo, water-butt, water-cannon, water-closet, water-colour (US -color), water-cooled, water-diviner, water-fowl, water-hammer, water-hole,