What is General?

Legal Definition
This word has several meanings, namely: 1. A principal officer, particularly in the army. 2. Something opposed to special; as, a general verdict, the general issue, which expressions are used in contradistinction to special verdict, special issue. 3. Principal, as the general post office. 4. Not select, as a general ship. (q. v.) 5. Not particular, as a general custom. 6. Not limited, as general jurisdiction. 7. This word is sometimes annexed or prefixed to other words to express or limit the extent of their signification; as Attorney General, Solicitor General, the General Assembly, &c.
-- Bouviers Law Dictionary
Legal Definition
Pertaining to or designating, the genus or class, as distinguished from that which characterizes the species or individual. Universal, not particularized; as opposed to special. Principui or central; as opposed to local. Open or avallable to all, as opposed to select. Obtaining commonly or recognized universally; as opposed to particular. Universal or unbounded; as opposed to limited. Comprehending the whole or directed to the whole; as distinguished from anything applying to or designed for a portion only. As a noun, the word is the title of a principal officer in the army, usually one who commands a whole army, division, corps, or brigade. In the United States army, the rank of "general" is the highest possible, next to the commander in chief, and is only occasionally created. The officers next in rank are lieutenant general, major general, and brigadier general.
-- Black's Law Dictionary