consent

American Heritage® Dictionary of the English Language, Fourth Edition

1. v. To give assent, as to the proposal of another; agree. See Synonyms at assent.
2. v. Archaic To be of the same mind or opinion.
3. n. Acceptance or approval of what is planned or done by another; acquiescence. See Synonyms at permission.
4. n. Agreement as to opinion or a course of action: She was chosen by common consent to speak for the group.

Century Dictionary and Cyclopedia

1. To agree in sentiment; be of the same mind; accord; be at one.
2. To agree; yield credence or accord; give assent, as to a proposition or the terms of an agreement.
3. To yield when one has the right, power, or desire to oppose; accede, as to persuasion or entreaty; aid, or at least voluntarily refrain from opposing, the execution of another person's purpose; comply.
4. Synonyms See list under accede. Permit, Consent to, etc. See allow.
5. To grant; allow; acknowledge; give assent to.
6. n. Voluntary allowance or acceptance of what is done or proposed to be done by another; a yielding of the mind or will to that which is proposed; acquiescence; concurrence; compliance; permission.
7. n. In law, intelligent concurrence in the adoption of a contract or an agreement of such a nature as to bind the party consenting; agreement upon the same thing in the same sense. Consent of parties is implied in all contracts; hence, persons legally incapable of giving consent, as idiots, etc., cannot be parties to a contract. Persons in a state of absolute drunkenness cannot give legal consent, although a lesser degree of intoxication will not afford a sufficientground for annulling a contract. Cousent is null where it proceeds on essential mistake of fact, or where obtained by fraud or by force and fear.
8. n. Agreement in opinion or sentiment; unity of opinion or inclination.
9. n. A preconcerted design; concert.
10. n. Agreement; correspondence in parts, qualities, or operation; harmony; concord.
11. n. In pathology, an agreement or sympathy, by which one affected part of the system affects some distant part. See sympathy.
12. n. Synonyms Assent, Consent, Concurrence, etc. See assent.

Wiktionary

1. v. intransitive To express willingness, to give permission.
2. v. transitive, medicine To cause to sign a consent form.
3. n. Voluntary agreement or permission

GNU Webster's 1913

1. v. To agree in opinion or sentiment; to be of the same mind; to accord; to concur.
2. v. To indicate or express a willingness; to yield to guidance, persuasion, or necessity; to give assent or approval; to comply.
3. v. obsolete To grant; to allow; to assent to; to admit.
4. n. Agreement in opinion or sentiment; the being of one mind; accord.
5. n. Correspondence in parts, qualities, or operations; agreement; harmony; coherence.
6. n. Voluntary accordance with, or concurrence in, what is done or proposed by another; acquiescence; compliance; approval; permission.
7. n. (Law) Capable, deliberate, and voluntary assent or agreement to, or concurrence in, some act or purpose, implying physical and mental power and free action.
8. n. (Physiol.) Sympathy. See Sympathy, 4.

WordNet 3.0

1. n. permission to do something
2. v. give an affirmative reply to; respond favorably to