Quick answer
Ismene is a girl name meaning "knowledge".
Pronunciation: Classical Greek /iz.mɛ̌ː.nɛː/; English /ɪs.ˈmiː.niː/.
Meaning and history
Possibly from Greek ἰσμή (isme) meaning "knowledge". This was the name of the daughter of Oedipus and Jocasta in Greek legend.
Notes and context
Usage: greek mythology | Ancient Greek: Ἰσμήνη