NormFunction is an option for functions such as FindFit and NDSolve which gives a function to be minimized in generating results.
NotebookObject[fe, id] is an object that represents an open notebook in the front end.
OrderedQ[h[e_1, e_2, ...]] gives True if the e_i are in canonical order, and False otherwise.
PathGraphQ[g] yields True if the graph g is a path and False otherwise.
PoleZeroMarkers is an option for RootLocusPlot that specifies the markers to be drawn on the complex plane at the open-loop poles, closed-loop poles, and open-loop zeros.
SequenceForm has been superseded by Row and Text.
Shortest[p] is a pattern object that matches the shortest sequence consistent with the pattern p.
ShortestPathFunction[type, data] represents a function that gives the shortest path from a source vertex s to target vertex t in a graph.
SpanFromLeft is a symbol that can appear at a particular position in a Grid or related construct to indicate that the corresponding position is occupied by a spanning element ...
TextAlignment is an option for Cell, Style and related constructs which specifies how successive lines of text should be aligned.