noun🔗ShareA guard, particularly on duty at the entrance to a military base."The sentry at the gate of the military base saluted the approaching car. "militaryjobpersonpositionwarChat with AIVocabulary GamePractice Reading
noun🔗ShareSentry duty; time spent being a sentry."The soldier's sentry duty was long and tiring. "militaryjobChat with AIVocabulary GamePractice Reading
noun🔗ShareA form of drag to be towed underwater, which on striking bottom is upset and rises to the surface."The fishing boat used a sentry to help locate the bottom of the lake. "nauticalmilitaryweapondeviceChat with AIVocabulary GamePractice Reading
noun🔗ShareA watchtower."The school's new sentry tower provides a good view of the playground. "militarybuildingarchitecturepositionChat with AIVocabulary GamePractice Reading
