rectify rectify /ˈrɛktəˌfaɪ/

verb

1. Convert into direct current  ( rectify )
   convert into direct current
    Rectify alternating current
   rectify alternating current
   
2. Make right or correct  ( rectify , right , correct )
   make right or correct
    Correct the mistakes
   Correct the mistakes
    Rectify the calculation
   rectify the calculation
   
3. Set straight or right  ( amend , rectify , remediate , remedy , repair )
   set straight or right
    Remedy these deficiencies
   remedy these deficiencies
    Rectify the inequities in salaries
   rectify the inequities in salaries
    Repair an oversight
   repair an oversight
   
4. Bring, lead, or force to abandon a wrong or evil course of life, conduct, and adopt a right one  ( reclaim , rectify , reform , regenerate )
   bring, lead, or force to abandon a wrong or evil course of life, conduct, and adopt a right one
    The Church reformed me
   The Church reformed me
    Reform your conduct
   reform your conduct
   
5. Reduce to a fine, unmixed, or pure state; separate from extraneous matter or cleanse from impurities  ( rectify , refine )
   reduce to a fine, unmixed, or pure state; separate from extraneous matter or cleanse from impurities
    Refine sugar
   refine sugar
   
6. Math: determine the length of  ( rectify )
   math: determine the length of
    Rectify a curve
   rectify a curve