tense vs unbend

tense

adj
  • Pulled taut, without any slack. 

  • Showing signs of stress or strain; not relaxed. 

verb
  • To apply a tense to. 

  • To make tense. 

  • To become tense. 

noun
  • Any of the forms of a verb which distinguish when an action or state of being occurs or exists. 

  • The property of indicating the point in time at which an action or state of being occurs or exists. 

  • An inflected form of a verb that indicates tense. 

unbend

verb
  • To remove a bend so as to make, or allow to become, straight. 

  • To cast loose or untie 

  • To cease to be bent; to become straight. 

  • To relax in exertion, attention, severity, or the like 

  • To release (a load) from a strain or from exertion; to set at ease for a time; to relax. 

  • To unfasten sails from the spars or stays to which are attached for use. 

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