¹revise

correct, rectify, emend, remedy, redress, amend, reform, revise mean to make right what is wrong. correct implies taking action to remove errors, faults, deviations, defects <correct your spelling>. rectify implies a more essential changing to make something right, just, or properly controlled or directed <rectify a misguided policy>. emend specifically implies correction of a text or manuscript <emend a text>. remedy implies removing or making harmless a cause of trouble, harm, or evil <set out to remedy the evils of the world>. redress implies making compensation or reparation for an unfairness, injustice, or imbalance <redress past social injustices>. amend, reform, revise imply an improving by making corrective changes, amend usually suggesting slight changes <amend a law>, reform implying drastic change <plans to reform the court system>, and revise suggesting a careful examination of something and the making of necessary changes <revise the schedule>.

correct, accurate, exact, precise, nice, right mean conforming to fact, standard, or truth. correct usually implies freedom from fault or error <correct answers> <socially correct dress>. accurate implies fidelity to fact or truth attained by exercise of care <an accurate description>. exact stresses a very strict agreement with fact, standard, or truth <exact measurements>. precise adds to exact an emphasis on sharpness of definition or delimitation <precise calibration>. nice stresses great precision and delicacy of adjustment or discrimination <makes nice distinctions>. right is close to correct but has a stronger positive emphasis on conformity to fact or truth rather than mere absence of error or fault <the right thing to do>.