Definition of "amendment"

amendment

/əˈmend.mənt/

noun
countable and uncountable, plural amendments
1. An alteration or change for the better; correction of a fault or of faults; reformation of life by quitting vices.
2. In public bodies, any alteration made or proposed to be made in a bill or motion that adds, changes, substitutes, or omits.
  Quotations
  Arrests and prosecutions intensified after Isis captured Mosul in June, but the groundwork had been laid by an earlier amendment to Jordan’s anti-terrorism law.
  2014 November 27, Ian Black, “Courts kept busy as Jordan works to crush support for Isis”, in The Guardian‎
3. (law) Correction of an error in a writ or process.
4. (especially US) An addition to and/or alteration to the Constitution.
5. That which is added; that which is used to increase or supplement something.