rain vs shower

rain

verb
  • To fall as or like rain. 

  • To have rain fall from the sky. 

  • To issue (something) in large quantities. 

noun
  • Any matter moving or falling, usually through air, and especially if liquid or otherwise figuratively identifiable with raindrops. 

  • Condensed water falling from a cloud. 

  • An instance of particles or larger pieces of matter moving or falling through air. 

shower

verb
  • To rain in a shower; to cascade down. 

  • To spray with (a specified liquid). 

  • To bathe using a shower. 

  • To bestow liberally, to give or distribute in abundance. 

noun
  • A brief fall of precipitation (spell of rain, or a similar fall of snow, sleet, or cascade). 

  • A party associated with a significant event in a person's life, at which the person usually receives gifts. 

  • A baby shower. 

  • An instance of using of this device in order to bathe oneself. 

  • Used as an intensifying pluralizer or intensifier 

  • One who shows. 

  • A quantity of something that has characteristics of a rain shower. 

  • An object or activity that is shown in a contest. 

  • A bridal shower. 

  • A shower of shit. 

  • A man whose penis is close to its full (erect) size when flaccid, or the penis itself. 

  • A device for bathing by which water is made to fall on the body from a height, either from a tank or by the action of a pump. 

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