approve vs zing

approve

verb
  • To regard as good; to commend; to be pleased with; to think well of. 

  • To officially sanction; to ratify; to confirm; to set as satisfactory. 

  • To make profit of; to convert to one's own profit — said especially of waste or common land appropriated by the lord of the manor. 

  • To consider worthy (to); to be pleased (with); to accept. 

zing

verb
  • To address a witty insult or comeback to. 

  • To move very quickly, especially while making a high-pitched hum. 

noun
  • A short high-pitched humming sound, such as that made by a bullet or vibrating string. 

  • A witty insult or derogatory remark. 

  • Zest or vitality. 

  • Pleasant or exciting flavour of food. 

intj
  • A high pitched humming sound. 

  • Used to acknowledge a witty comeback, a zinger. 

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