to make right or accurate

सही करना

English Usage: She tried to correct his mistakes during the presentation.

Hindi Usage: उसने प्रस्तुति के दौरान उसके गलतियों को सही करने की कोशिश की।

the process of correcting something

सुधार करना

English Usage: The correction of the document took longer than expected.

Hindi Usage: दस्तावेज़ का सुधार करने में उम्मीद से अधिक समय लगा।

free from error; in accordance with fact or truth

सही

English Usage: The correct answer was given after much deliberation.

Hindi Usage: बहुत सोच-विचार के बाद सही जवाब दिया गया।