what is flag in?
A flag is like a switch that can be either on or off. The flag is said to be set when it is turned on. (2) A special mark indicating that a piece of data is unusual. For example, a record might contain an error flag to indicate that the record consists of unusual, probably incorrect, data. (v) To mark an object to indicate that a particular event has occurred or that the object marked is unusual is some way.
(Redirected from Flag terminology) Flag terminology is the nomenclature, or system of terms, used in vexillology, the study of flags, to describe precisely the parts, patterns, and other attributes of flags and their display. 1 Description of standard flag parts and terms.