Environment["var"] gives the value of an operating system environment variable.
Exit
(Built-in Mathematica Symbol) Exit[] terminates a Mathematica kernel session.
FindGeometricTransform[pts_1, pts_2] finds a geometric transformation between two geometries pts_1 and pts_2, returning the alignment error together with the transformation ...
FrontEndTokenExecute["cmd"] executes the specified front end command token, typically corresponding to a front end menu item.
Full
(Built-in Mathematica Symbol) Full is a setting used for certain options, typically indicating that a full range of values should be included.
GraphPeriphery[g] gives the set of vertices with maximum eccentricity in the graph g.
GridFrame is an option for grids that specifies whether a surrounding frame is drawn.
HypothesisTestData[...] represents hypothesis test data such as generated by DistributionFitTest, AndersonDarlingTest, etc.
InputStream["name", n] is an object that represents an input stream for functions such as Read and Find.
Interrupt[] generates an interrupt.