pungent vs suffocating

pungent

adj
  • Stinging; acerbic. 

  • Having a sharp and stiff point. 

  • Having a strong odor that stings the nose, said especially of acidic or spicy substances. 

  • Having a strong taste that stings the tongue, said especially of hot (spicy) food, which has a strong and sharp or bitter taste. 

suffocating

noun
  • suffocation 

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