expressive vs symbolic

expressive

adj
  • Effectively conveying thought or feeling. 

noun
  • Any word or phrase that expresses (that the speaker, writer, or signer has) a certain attitude toward or information about the referent. 

  • A word or phrase, belonging to a distinct word class or having distinct morphosyntactic properties, with semantic symbolism (for example, an onomatopoeia), variously considered either a synonym, a hypernym or a hyponym of ideophone. 

symbolic

adj
  • Implicitly representing or referring to another thing. 

  • Pertaining to a symbol. 

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