sen ‧ try /ˈsentri/ BrE AmE noun ( plural sentries ) [countable]
[ Date: 1600-1700 ; Origin: Perhaps from sentry 'sanctuary, guard-tower' (1600-1700) , from sanctuary ]
a soldier standing outside a building as a guard
sen ‧ try /ˈsentri/ BrE AmE noun ( plural sentries ) [countable]
[ Date: 1600-1700 ; Origin: Perhaps from sentry 'sanctuary, guard-tower' (1600-1700) , from sanctuary ]
a soldier standing outside a building as a guard
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012