1. The idea that a given text is a response to what has already been written, be it explicit or implicit
   "The novel's intertextuality was evident in its numerous allusions to classic literature"
    
2. The reference to another separate and distinct text within a text
   "The author's use of intertextuality included quoting lines from Shakespeare's plays"

Derived forms: intertextualities

Encyclopedia: Intertextuality