An armorial emblem used to mark your belongings or to denote a household or other organization (guild, etc.) within the SCA. It is usually simpler (fewer items/colors on the badge) than a device (or arms) unless your device is extremely simple.
This is a belt (leather, fabric, whatever) worn from one shoulder to the hip. Baldrics serve many purposes: they can be used to hold a sword (rather than hanging a sword from one's belt); they can be used to note an officer (specific colors/badges) -- these are usually fabric; they can be used as decoration; in the West, they are used for members of the Queen's Guard, the Princess' Escort for some of the Principalities, and other purposes; and a white baldric is reserved specifically for Masters of Arms.
This is a means of displaying one's device or coat of arms (or badge) on fabric. There are many styles that are period in form. One style commonly in use that is not period in form is a 'heater shape' (shield shaped) banner. Instead, it is suggested that you use a rectangular shape, and if you really want to place your arms on a shield, do so, placing the shield-shape on the rectangle -- that is more period in form and style. Banners are a great way to add pageantry to the SCA, and add to the medieval atmosphere of events.
This term can be confusing, as it is sometimes used as a title (as in "Bard of the Mists"), and some folk call themselves "Bards". A bard is a person who participates in bardic circles, sings, tells stories, recites poetry, etc. Except for positions such as the "Bard of the West" or the "Bard of the Mists", there is no official title "Bard" in the West, and use of this term as a title should be discouraged.
A gathering where the major activity is the exchange of songs and stories in a medieval style. Often done around a campfire at camping events.
A Barony is a branch within the SCA. A Barony must have a Baron and/or Baroness (see above), as well as fit within specific guidelines defined in the SCA's Corpora and By-Laws for the size and activity levels of the organization. A Barony may contain within it's borders smaller branches, such as Shires, Cantons, and others, but it is not required that they do so. A Province has the same requirements as a Barony, but does not have the ceremonial head(s) of a Baron and/or Baroness.
Historical Note: The first Barony of the SCA was Atenveldt (November, AS IV (1969)). They didn't stay a Barony for long, becoming a Principality (February 22, AS IV (1970)) and then a Kingdom (first Crown Tournament dated Jan. 16, AS V (1971)) within just a couple of years.
A belted fighter is a member of the Order of Chivalry, the term refers to the white belt worn by a Knight or the baldric worn by a Master of Arms.
The Board of Directors are the people who deal with the mundane (non-medieval) aspects of running the organization.
A branch is an official SCA organization, which is regional, and must have specific officers (the requirements vary depending on the size of the branch). It may be based on a city, a University (see College), or a larger area. In the United States most Kingdoms are defined by the state borders (or close), but may and usually do, include multiple states. An Atlantian shire which had no actual land of its own was Curragh Mor (“great boat” in Gaelic). It was located on the aircraft carrier USS Nimitz. This fit in the SCA rules since the carrier had its own zip code.