Porter - Vine's Expository Dictionary of New Testament Words
Porter
[ 1,,G2377, thuroros ]a door-keeper" (thura, "a door," ouros, "a guardian"), is translated "porter" in Mark 13:34; John 10:3; it is used of a female in John 18:16-John 18:17, translated "(her) that kept the door." In the Sept., 2 Samuel 4:6; 2 Kings 7:11; Ezekiel 44:11.