metaphorical vs related

metaphorical

adj
  • Pertaining to or characterized by a metaphor; figurative; symbolic. 

related

adj
  • Narrated; told. 

  • Fulfilling a relation. 

  • Standing in relation or connection. 

  • Being a relative of. 

  • Synonym of relative. 

  • Having a relationship with the thing named 

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