Harlot - Vine's Expository Dictionary of New Testament Words
Harlot[ 1,,G4204, porne ]
a prostitute, harlot" (from pernemi, "to sell"), is used
(a) literally, in Matthew 21:31-Matthew 21:32, of those who were the objects of the mercy shown by Christ; in Luke 15:30, of the life of the Prodigal; in 1 Corinthians 6:15-16, in a warning to the Corinthian church against the prevailing licentiousness which had made Corinth a byword; in Hebrews 11:31; James 2:25, of Rahab;
(b) metaphorically, of mystic Babylon, Revelation 17:1, Revelation 17:5 (AV, "harlots"), Revelation 17:15-Revelation 17:16; Revelation 19:2, RV, for AV, "whore."