support vs volunteer

support

verb
  • To serve, as in a customer-oriented mindset; to give support to. 

  • To keep from falling. 

  • To be designed (said of machinery, electronics, or computers, or their parts, accessories, peripherals, or programming) to function compatibly with or provide the capacity for. 

  • To help, particularly financially. 

  • To back a cause, party, etc., mentally or with concrete aid. 

  • To verify; to make good; to substantiate; to establish; to sustain. 

  • To answer questions and resolve problems regarding something sold. 

  • To be accountable for, or involved with, but not responsible for. 

  • To assume and carry successfully, as the part of an actor; to represent or act; to sustain. 

noun
  • An actor playing a subordinate part with a star. 

  • Answers to questions and resolution of problems regarding something sold. 

  • Evidence. 

  • Something which supports. 

  • An accompaniment in music. 

  • Compatibility and functionality for a given product or feature. 

  • Horizontal, vertical or rotational support of structures: movable, hinged, fixed. 

  • Financial or other help. 

  • A set whose elements are at least partially included in a given fuzzy set (i.e., whose grade of membership in that fuzzy set is strictly greater than zero). 

  • in relation to a function, the set of points where the function is not zero, or the closure of that set. 

volunteer

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

  • To offer, usually unprompted. 

  • To grow without human sowing or intentional cultivation. 

  • To enlist oneself as a volunteer. 

  • To do or offer to do something voluntarily. 

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. 

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