delineation vs rheme

delineation

noun
  • A graphic verbal description. 

  • The act of delineating; depiction. 

  • An image of the outline of an object. 

rheme

noun
  • The part of a sentence that provides new information regarding the current theme. 

  • A sign that represents its object in respect of quality and so, in its signified interpretant, is represented as a character or mark; sumisign. 

How often have the words delineation and rheme occurred in a corpus of books? (source: Google Ngram Viewer )