Definition of sentry in English:



  • A soldier stationed to keep guard or to control access to a place.

    • ‘Outside of the villa, the sentries standing at the walls had seen the coming army.’
    • ‘A lone sentry now stands guard, posted by the Northern Alliance.’
    • ‘The complex sleeps at night, except for a handful of sentries and guards.’
    • ‘He looked to the sentries guarding his tent and smiled a little wider.’
    • ‘There should have been a sentry, a guard, or even a sign of some enclave or camp.’
    • ‘The enemy sentries and war machines were now aware of where he was.’
    • ‘You will reside in a secret place guarded by armed sentries.’
    • ‘There wasn't a single sentry, and the armies stood like an immense black sea about the castle.’
    • ‘I should have noticed that there had been no one around the lit fire, or there were no sentries or patrols whatsoever.’
    • ‘Yet, there appeared to be a crowd forming around the sentry on guard there.’
    • ‘By acting as sentries, patrolling the countryside etc. they relieved the army to do other work.’
    • ‘After only a few steps she saw a sentry, standing not too far away, with his back to her.’
    • ‘Set up sentries and scouts to make sure all of the enemies are out of the area.’
    • ‘We passed another guard post, the sentries there expecting us.’
    • ‘The sentries were on duty but no one came through the gate.’
    • ‘First, a sentry need no longer be a soldier standing at the entrance to a camp with a pike, or a rifle.’
    • ‘We put one man on top of the Antelope House to act as a sentry as the others patrolled the grounds the next night.’
    • ‘In 1925, sentries patrolling this border fired on one another and a Greek soldier was killed.’
    • ‘Rustling grass told him that a sentry was standing not five meters away.’
    • ‘Having seen no sentries or patrols of any kind, Maddock heaved the door to the tunnel open and they all headed in.’
    guard, sentinel, lookout, watch, watchman, patrol, picket
    View synonyms


Early 17th century: perhaps from obsolete centrinel, variant of sentinel.