Valid and Correct

adjective

• Well grounded in logic or truth or having legal force.
  • usage: "a valid inference"; "a valid argument"; "a valid contract"
• Still legally acceptable.
  • usage: "the license is still valid"

• (a.) Having sufficient strength or force; founded in truth; capable of being justified, defended or supported; not weak or defective; sound; good; efficacious; as, a valid argument; a valid objection.
• (a.) Having legal strength or force; executed with the proper formalities; incapable of being rightfully overthrown or set aside; as, a valid deed; a valid covenant; a valid instrument of any kind; a valid claim or title; a valid marriage.
• (a.) Strong; powerful; efficient.

Legally binding; authorized.

verb

• Make right or correct.
  • usage: "Correct the mistakes"; "rectify the calculation"
  • synonyms: rectify, right
• Make reparations or amends for.
  • usage: "right a wrongs done to the victims of the Holocaust"
  • synonyms: right, compensate, redress
• Censure severely.
  • usage: "She chastised him for his insensitive remarks"
  • synonyms: chastise, castigate, objurgate, chasten
• Adjust for.
  • usage: "engineers will work to correct the effects or air resistance"
  • synonyms: compensate, counterbalance, make up, even out, even off, even up
• Punish in order to gain control or enforce obedience.
  • usage: "The teacher disciplined the pupils rather frequently"
  • synonyms: discipline, sort out
• Go down in value.
  • usage: "the stock market corrected"; "prices slumped"
  • synonyms: decline, slump
• Alter or regulate so as to achieve accuracy or conform to a standard.
  • usage: "Adjust the clock, please"; "correct the alignment of the front wheels"
  • synonyms: adjust, set
• Treat a defect.
  • usage: "The new contact lenses will correct for his myopia"

adjective

• Free from error; especially conforming to fact or truth.
  • usage: "the correct answer"; "the correct version"; "the right answer"; "took the right road"; "the right decision"
  • synonyms: right
• Socially right or correct.
  • usage: "it isn't right to leave the party without saying goodbye"; "correct behavior"
  • synonyms: right
• In accord with accepted standards of usage or procedure.
  • usage: "what's the right word for this"; "the right way to open oysters"
  • synonyms: right
• Correct in opinion or judgment.
  • usage: "time proved him right"
  • synonyms: right

• (v.t.) To make right; to bring to the standard of truth, justice or propriety; to rectify; as, to correct manners or principles.
• (v.t.) To bring back or attempt to bring back, to propriety in morals; to reprove or punish for faults or deviations from moral rectitude; to chastise; to discipline; as, a child should be corrected for lying.
• (v.t.) To counteract the qualities of one thing by those of another; -- said of whatever is wrong or injurious; as, to correct the acidity of the stomach by alkaline preparations.
• (a.) Set right or made straight; hence, conformable to truth, rectitude or propriety or to a just standard; not faulty or imperfect; free from error; as, correct behavior; correct views.
• (v.t.) To remove or retrench the faults or errors of; to amend; to set right; as, to correct the proof (that is, to mark upon the margin the changes to be made or to make in the type the changes so marked).