volunteer vs warranty

volunteer

verb
  • To do or offer to do something voluntarily. 

  • To offer, usually unprompted. 

  • To grow without human sowing or intentional cultivation. 

  • To enlist oneself as a volunteer. 

  • To offer the services of (someone else) to do something. 

noun
  • A plant that grows spontaneously, without being cultivated on purpose; see volunteer plant in Wikipedia. 

  • A voluntary member of the organized militia of a country, as distinguished from a regular or member of the standing army. 

  • One who enters into military service voluntarily (but who, when in service, is subject to discipline and regulations like other soldiers), as opposed to a conscript. 

  • A native or resident of the American state of Tennessee. 

  • One who enters into, or offers themself for, any service of their own free will, especially when done without pay. 

  • A person who acts out of their own will without a legal obligation, such as a donor. 

warranty

verb
  • To warrant; to guarantee. 

noun
  • A written guarantee, usually over a fixed period, provided to someone who buys a product or item, which states that repairs will be provided free of charge in case of damage or a fault. 

  • A guarantee that a certain outcome or obligation will be fulfilled; security. 

  • A stipulation of an insurance policy made by an insuree, guaranteeing that the facts of the policy are true and the insurance risk is as stated, which if not fulfilled renders the policy void. 

  • A legal agreement, either written or oral (an expressed warranty) or implied through the actions of the buyer and seller (an implied warranty), which states that the goods or property in question will be in exactly the same state as promised, such as in a sale of an item or piece of real estate. 

  • Justification or mandate to do something, especially in terms of one’s personal conduct. 

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