reassurance vs safeguard

reassurance

noun
  • Reinsurance. 

  • The act of confirming someone's opinion or impression. 

  • The feeling of being reassured, of having confidence restored, of having apprehensions dispelled. 

safeguard

noun
  • Something that serves as a guard or protection; a defense. 

  • A safe-conduct or passport, especially in time of war. 

  • One who, or that which, defends or protects; defence; protection. 

verb
  • To escort safely. 

  • To implement safeguarding. 

  • To protect, to keep safe. 

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