absorb vs discharge

absorb

verb
  • To be absorbed, or sucked in; to sink in. 

  • in receiving sound energy without repercussion or echo. 

  • taking in radiant energy and converting it to a different form of energy, like heat. 

  • To engross or engage wholly; to occupy fully. 

  • To take in energy and convert it, as 

  • To suck up; to drink in; to imbibe, like a sponge or as the lacteals of the body; to chemically take in. 

  • To occupy or consume time. 

  • To assume or pay for as part of a commercial transaction. 

  • To include so that it no longer has separate existence; to overwhelm; to cause to disappear as if by swallowing up; to incorporate; to assimilate; to take in and use up. 

  • Assimilate mentally. 

  • To accept or purchase in quantity. 

  • To defray the costs. 

  • in receiving a physical impact or vibration without recoil. 

discharge

verb
  • To expel or let go. 

  • To operate (any weapon that fires a projectile, such as a shotgun or sling). 

  • To send away (a creditor) satisfied by payment; to pay one's debt or obligation to. 

  • To relieve of an office or employment; to send away from service; to dismiss. 

  • To release (an accumulated charge). 

  • To release legally from confinement; to set at liberty. 

  • To let fly, as a missile; to shoot. 

  • To free of a debt, claim, obligation, responsibility, accusation, etc.; to absolve; to acquit; to forgive; to clear. 

  • To release (an auxiliary assumption) from the list of assumptions used in arguments, and return to the main argument. 

  • To unload a ship or another means of transport. 

  • To give forth; to emit or send out. 

  • To release (an inpatient) from hospital. 

  • To put forth, or remove, as a charge or burden; to take out, as that with which anything is loaded or filled. 

  • To set aside; to annul; to dismiss. 

  • To bleach out or to remove or efface, as by a chemical process. 

  • To release (a member of the armed forces) from service. 

  • To accomplish or complete, as an obligation. 

  • To let fly; to give expression to; to utter. 

noun
  • The volume of water transported by a river in a certain amount of time, usually in units of m³/s (cubic meters per second). 

  • The process of flowing out. 

  • The act of firing a projectile, especially from a firearm. 

  • Pus or exudate (other than blood) from a wound or orifice, usually due to infection or pathology. 

  • The act of accomplishing (an obligation) or repaying a debt etc.; performance. 

  • The act of expelling or letting go. 

  • The act of releasing an inpatient from hospital. 

  • The act of releasing an accumulated charge. 

  • The act of releasing a member of the armed forces from service. 

  • The process of unloading something. 

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