G5441–φυλακτήριος–phulaktērios

saying, "The jail we found quite safely locked, and the warders were on guard at the doors, but upon going in we found no one there."

φύλακας phulakas “guards”

Now when Herod was on the point of taking him out of prison, that very night Peter was asleep between two soldiers, bound with two chains, and guards were on duty outside the door.

φύλακές phulakes “guards”

And when Herod had had him searched for and could not find him, after sharply questioning the guards he ordered them away to execution. He then went down from Judaea to Caesarea and remained there.

φύλακας phulakas “guards”