breath vs ozone

breath

noun
  • Air expelled from the lungs. 

  • A single act of breathing in or out; a breathing of air. 

  • The act or process of breathing. 

  • A rest or pause. 

  • A small amount of something, such as wind, or common sense. 

adj
  • voiceless, surd; contrasting with voice (breath sounds, voice sounds) 

ozone

noun
  • An allotrope of oxygen (symbol O₃) having three atoms in the molecule instead of the usual two; it is a toxic gas, generated from oxygen by electrical discharge. 

  • Hypernym: greenhouse gas 

  • Fresh air, especially that breathed at the seaside and smelling of seaweed. 

verb
  • To treat with ozone. 

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