verb (v)

• math: determine the length of(verb.communication)

  Example:
  Rectify a curve.
  

  source: wordnet30
• reduce to a fine, unmixed, or pure state; separate from extraneous matter or cleanse from impurities(verb.change)

  Synonym:
  refine
  

  source: wordnet30
• bring, lead, or force to abandon a wrong or evil course of life, conduct, and adopt a right one(verb.change)

  Synonym:
  reclaim, reform, regenerate
  

  source: wordnet30
• set straight or right(verb.change)

  Example:
  Rectify the inequities in salaries.
  

  Synonym:
  amend, remediate, remedy, repair
  

  source: wordnet30
• make right or correct(verb.change)

  Example:
  Rectify the calculation.
  

  Synonym:
  correct, right
  Antonym:
  falsify
  

  source: wordnet30
• convert into direct current(verb.change)

  Example:
  Rectify alternating current.
  

  source: wordnet30
• To make or set right; to correct from a wrong, erroneous, or false state; to amend; as, to rectify errors, mistakes, or abuses; to rectify the will, the judgment, opinions; to rectify disorders.(verb)

  source: webster1913