What is the meaning of Leitmotiv?

Alternative form of leitmotif.

leitmotif

leitmotif (musical or otherwise)

leitmotif (a recurring melodic theme in an opera)

leitmotif (recurring theme)

obsolete form of laitmotiv

leitmotif (a recurring melodic theme in an opera)

leitmotif (recurring theme)

Source: wiktionary.org