loan vs plunge

loan

verb
  • To lend (something) to (someone). 

noun
  • An act or instance of lending, an act or instance of granting something for temporary use. 

  • A lonnen. 

  • A sum of money or other property that a natural or legal person borrows from another with the condition that it be returned or repaid over time or at a later date (sometimes with interest). 

  • The permission to borrow any item. 

  • The contract and array of legal or ethical obligations surrounding a loan. 

plunge

verb
  • To cast, stab or throw into some thing, state, condition or action. 

  • To pitch or throw oneself headlong or violently forward, as a horse does. 

  • To bet heavily and recklessly; to risk large sums in gambling. 

  • To thrust into liquid, or into any penetrable substance; to immerse. 

  • To fall or rush headlong into some thing, action, state or condition. 

  • To remove a blockage by suction. 

  • To dive, leap or rush (into water or some liquid); to submerge oneself. 

noun
  • Heavy and reckless betting in horse racing; hazardous speculation. 

  • A dive, leap, rush, or pitch into (into water). 

  • The act of plunging or submerging. 

  • The act of pitching or throwing oneself headlong or violently forward, like an unruly horse. 

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