exhaust vs expand

exhaust

verb
  • To discuss thoroughly or completely 

  • To empty by drawing or letting out the contents 

  • To bring out or develop completely 

  • To subject to the action of various solvents in order to remove all soluble substances or extractives 

  • To draw or let out wholly; to drain off completely (:liquid) 

  • to tire out; to wear out; to cause to be without any energy 

  • To use up; to deplete, drain or expend wholly, or until the supply comes to an end 

noun
  • An exhaust pipe, especially on a motor vehicle. 

  • A system consisting of the parts of an engine through which burned gases or steam are discharged; see also exhaust system. 

  • The steam let out of a cylinder after it has done its work there. 

  • The dirty air let out of a room through a register or pipe provided for the purpose. 

  • exhaust gas. 

expand

verb
  • To speak or write at length or in detail. 

  • To become, by rewriting, a longer, yet equivalent sum of terms. 

  • To feel generous or optimistic. 

  • To multiply both the numerator and the denominator of a fraction by the same natural number yielding a fraction of equal value 

  • To change (something) from a smaller form or size to a larger one; to spread out or lay open. 

  • To change or grow from smaller to larger in form, number, or size. 

  • To rewrite (an expression) as a longer, yet equivalent sum of terms. 

  • To increase the extent, number, volume or scope of (something). 

  • To express (something) at length and/or in detail. 

  • To increase in extent, number, volume or scope. 

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