correct

American Heritage® Dictionary of the English Language, Fourth Edition

1. v. To remove the errors or mistakes from.
2. v. To indicate or mark the errors in.
3. v. To punish for the purpose of improving or reforming.
4. v. To remove, remedy, or counteract (a malfunction, for example).
5. v. To adjust so as to meet a required standard or condition: correct the wheel alignment on a car.
6. v. To make corrections.
7. v. To make adjustments; compensate: correcting for the effects of air resistance.
8. adj. Free from error or fault; true or accurate.
9. adj. Conforming to standards; proper: correct behavior.

Century Dictionary and Cyclopedia

1. To make straight or right; remove error from; bring into accordance with a standard or original; point out errors in.
2. Specifically— To note or mark errors or defects in, as a printer's proof, a book, a manuscript, etc., by marginal or interlinear writing.
3. To make alterations in, as type set for printing, according to the marking on a proof taken from it; make the changes required by: as, to correct a page or a form; to correct a proof.
4. To point out and remove, or endeavor to remove, an error or fault in: as, to correct an astronomical observation.
5. To destroy or frustrate; remove or counteract the operation or effects of, especially of something that is undesirable or injurious; rectify: as, to correct abuses; to correct the acidity of the stomach by alkaline preparations.
6. Specifically, in optics, to eliminate from (an eyepiece or object-glass) the spherical or chromatic aberration which tends to make the image respectively indistinct or discolored. See aberration, 4. With respect to chromatic aberration, the glass is said to be over-corrected or under-corrected, according as the red rays are brought to a focus beyond or within that of the violet rays.
7. To endeavor to cause moral amendment in; especially, punish for wrong-doing; discipline.
8. Synonyms Improve, Better. See amend.
9. In accordance or agreement with a certain standard, model, or original; conformable to truth, rectitude, or propriety; not faulty; free from error or misapprehension; accurate: as, the correct time.
10. n. Correction.

Wiktionary

1. adj. Free from error; true; the state of having an affirmed truth.
2. adj. With good manners; well behaved; conforming with accepted standards of behaviour.
3. v. transitive To make something that was not valid become right. To remove error.
4. v. by extension, transitive To grade (examination papers).
5. v. transitive To inform (someone) of the latter's error.

GNU Webster's 1913

1. adj. Set right, or made straight; hence, conformable to truth, rectitude, or propriety, or to a just standard; not faulty or imperfect; free from error.
2. v. To make right; to bring to the standard of truth, justice, or propriety; to rectify.
3. v. To remove or retrench the faults or errors of; to amend; to set right.
4. v. 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.
5. v. To counteract the qualities of one thing by those of another; -- said of whatever is wrong or injurious.

WordNet 3.0

1. adj. socially right or correct
2. adj. correct in opinion or judgment
3. v. alter or regulate so as to achieve accuracy or conform to a standard
4. v. adjust for
5. v. treat a defect
6. adj. free from error; especially conforming to fact or truth
7. v. go down in value
8. v. punish in order to gain control or enforce obedience
9. v. make reparations or amends for
10. v. censure severely
11. adj. in accord with accepted standards of usage or procedure
12. v. make right or correct