rivet vs unlock

rivet

verb
  • To command the attention of. 

  • To attach or fasten parts by using rivets. 

  • To make firm or immovable. 

  • To install rivets. 

noun
  • Any fixed point or certain basis. 

  • A cylindrical mechanical fastener that attaches multiple parts together by fitting through a hole and deforming the head(s) at either end. 

unlock

noun
  • The act of unlocking something. 

verb
  • To undermine something that has control over a situation; to find a way to counter or oppose. 

  • To make available. 

  • To configure (a mobile phone) so that it is not bound to any particular carrier. 

  • To undo or open a lock or something locked by, for example, turning a key, or selecting a combination. 

  • To obtain access to something; to meet the requirements of a security or protection system. 

  • To disclose or reveal previously unknown knowledge or potential. 

  • To be or become unfastened or unrestrained. 

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