What is Association?

Legal Definition
1. An organization of people that is not incorporated. In general, an association is not a separate entity from the persons who compose it. However, some laws may require associations to pay taxes, particularly if they have certain features that make it look like a corporation (e.g., central management, continuous existence, and some kind of limited liability that shields individual members from suit).

2. General description for the act of meeting people and sharing ideas (e.g., "freedom of association" under the First Amendment of the U.S. Constitution).
Legal Definition
The act of a number of persons uniting together for some purpose; the persons so joined are also called an association. See Company.
-- Bouviers Law Dictionary
Legal Definition
The aot of a number of persons who unite or join together for some special purpose or business. The union of a company of persons for the transaction of designated affairs or the attainment of some common object. An unincorporated society; a body of persons united and acting together without a charter, but upon the methods and forms used by incorporated bodies for the prosecution of some common enterprise. Allen v. Stevens, 33 App. Div. 485, 54 N. Y. Supp. 23; Pratt v. Asylum, 20 App. Div. 352, 46 N. Y. Supp. 1035; State v. Steele, 37 Minn. 428, 34 N. W. 903; Mills v. State, 23 Tex. 303; Laycock v. State, 136 Ind. 217, 36 N. E. 137. In English law. A writ directing certain persons (usually the clerk and his subordinate officers) to associate themselves with the justices and sergeants for the purposes of inking the assises. 3 Bl. Comm. 59, 60.
-- Black's Law Dictionary
Legal Definition
An unincorporated company having certain attributes of a corporation. See 20 App. Div. 352, 46 N. Y. Supp. 1035.
-- Ballentine's Law Dictionary