1) a prophetess
2) a woman to whom future events or things hidden from others are at times revealed, either by inspiration or by dreams and visions
3) a female who declares or interprets oracles
Part of Speech: noun feminine
Citing in TDNT: 6:781, 952
Feminine of G4396; a female foreteller or an inspired woman: - prophetess.
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 προφῆτις; click on the second column to search for that grammatical form of the root προφῆτις; click on the third column to search for that word and grammatical form; click on the total to search for the root προφῆτις.