1. 纠正；修正；矫正
If you rectify something that is wrong, you change it so that it becomes correct or satisfactory.
1. convert into direct current
e.g. rectify alternating current
2. make right or correct
e.g. Correct the mistakes
rectify the calculation
3. set straight or right
e.g. remedy these deficiencies
rectify the inequities in salaries
repair an oversight
Synonym: remediateremedyrepairamend
4. bring, lead, or force to abandon a wrong or evil course of life, conduct, and adopt a right one
e.g. The Church reformed me
reform your conduct
Synonym: reformreclaimregenerate
5. reduce to a fine, unmixed, or pure state
separate from extraneous matter or cleanse from impurities
e.g. refine sugar
Synonym: refine
6. math: determine the length of
e.g. rectify a curve