stress vs worry

stress

verb
  • To suffer stress; to worry or be agitated. 

  • To apply force to (a body or structure) causing strain. 

  • To emphasise (words in speaking). 

  • To emphasise (a point) in an argument or discussion. 

  • To emphasise (a syllable of a word). 

  • To apply emotional pressure to (a person or animal). 

noun
  • Emphasis placed on a particular point in an argument or discussion (whether spoken or written). 

  • A suprasegmental feature of a language having additional attention raised to a sound, word or word group by means of of loudness, duration or pitch; phonological prominence. 

  • distress; the act of distraining; also, the thing distrained. 

  • Aggression toward an organism resulting in a response in an attempt to restore previous conditions. 

  • Emotional pressure suffered by a human being or other animal. 

  • A physical, chemical, infective agent aggressing an organism. 

  • The internal distribution of force across a small boundary per unit area of that boundary (pressure) within a body. It causes strain or deformation and is typically symbolised by σ or τ. 

  • Force externally applied to a body which cause internal stress within the body. 

  • The suprasegmental feature of a language having additional attention raised to a sound by means of of loudness and/or duration; phonological prominence phonetically achieved by means of dynamics as distinct from pitch. 

worry

verb
  • To be troubled; to give way to mental anxiety or doubt. 

  • To harass; to irritate or distress. 

  • To touch repeatedly, to fiddle with. 

  • To seize or shake by the throat, especially of a dog or wolf. 

  • Disturb the peace of mind of; afflict with mental agitation or distress. 

noun
  • A strong feeling of anxiety. 

  • An instance or cause of such a feeling. 

  • A person who causes worry. 

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