agreement

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. The act of agreeing.
2. n. Harmony of opinion; accord.
3. n. An arrangement between parties regarding a course of action; a covenant.
4. n. Law A properly executed and legally binding contract.
5. n. Law The writing or document embodying this contract.
6. n. Grammar Correspondence in gender, number, case, or person between words.

Century Dictionary and Cyclopedia

1. n. The state of agreeing or of being in accord. Concord; harmony; conformity; resemblance; suitableness.
2. n. Union of opinions or sentiments; harmony in feeling; absence of dissension: as, a good agreement subsists among the members of the council.
3. n. In grammar, correspondence of words in respect of number, gender, etc. See agree, v., I., 8. In logic, capability of being true together: said of terms.
4. n. The act of coming to a mutual arrangement; a bargain, contract, covenant, or treaty: as, he made an agreement for the purchase of a house.
5. n. Agreeable quality or circumstance; agreeableness: generally in the plural.

Wiktionary

1. n. countable An understanding between entities to follow a specific course of conduct.
2. n. uncountable A state whereby several parties share a view or opinion; the state of not contradicting one another.
3. n. uncountable, law A legally binding contract enforceable in a court of law.
4. n. uncountable, linguistics Rules that exist in many languages that force some parts of a sentence to be used or inflected differently depending on certain attributes of other parts.
5. n. obsolete, chiefly in plural An agreeable quality.

GNU Webster's 1913

1. n. State of agreeing; harmony of opinion, statement, action, or character; concurrence; concord; conformity.
2. n. (Gram.) Concord or correspondence of one word with another in gender, number, case, or person.
3. n. A concurrence in an engagement that something shall be done or omitted; an exchange of promises; mutual understanding, arrangement, or stipulation; a contract.
4. n. The language, oral or written, embodying reciprocal promises.

WordNet 3.0

1. n. the statement (oral or written) of an exchange of promises
2. n. compatibility of observations
3. n. the determination of grammatical inflection on the basis of word relations
4. n. the verbal act of agreeing
5. n. harmony of people's opinions or actions or characters
6. n. the thing arranged or agreed to