φύλαξ phýlax

Greek · Strong's G5441 · used 3 times in 3 verses

Meaning

a watcher or sentry

In the King James Version: keeper

Derivation: from G5442 (φυλάσσω);

Acts 5:23 “We found the jail securely locked, with the guards posted at the doors; but when we opened them, we found no one inside.”
Acts 12:6 On the night before Herod was to bring him to trial, Peter was sleeping between two soldiers, bound with two chains, with sentries standing guard at the entrance to the prison.
Acts 12:19 After Herod had searched for him unsuccessfully, he examined the guards and ordered that they be executed. Then he went down from Judea to Caesarea and spent some time there.