1) a woman who sells her body for sexual uses
1a) a prostitute, a harlot, one who yields herself to defilement for the sake of gain
1b) any woman indulging in unlawful sexual intercourse, whether for gain or for lust
2) metaphorically an idolatress
2a) of "Babylon," i.e. Rome, the chief seat of idolatry
Part of Speech: noun feminine
Citing in TDNT: 6:579, 918
Feminine of G4205; a strumpet; figuratively an idolater: - harlot, whore.
These two sites give similar information, with the definition from several dictionaries and statistics on the use of the word.
Perseus Digital Library
University of Chicago's Logion lexicon
Thayer's dictionary plus other information.
From this site's dictionary (in Italian)
Click on the first column to search for that word as a form of the root πόρνη; click on the second column to search for that grammatical form of the root πόρνη; click on the third column to search for that word and grammatical form; click on the total to search for the root πόρνη.