GreaterLess[x, y, ...] displays as x \[GreaterLess] y \[GreaterLess] ....
Greater
(Built-in Mathematica Symbol) x > y yields True if x is determined to be greater than y. x_1 > x_2 > x_3 yields True if the x_i form a strictly decreasing sequence.
GreaterSlantEqual[x, y, ...] displays as x \[GreaterSlantEqual] y \[GreaterSlantEqual] ....
GreaterTilde[x, y, ...] displays as x \[GreaterTilde] y \[GreaterTilde] ....
Green
(Built-in Mathematica Symbol) Green represents the color green in graphics or style specifications.
GridBox
(Built-in Mathematica Symbol) GridBox[{{box_11, box_12, ...}, {box_21, box_22, ...}, ...}] is a low-level box construct that represents a two-dimensional grid of boxes or strings in notebook expressions.
GridCreationSettings -> {opt_1 -> val_1, opt_2 -> val_2, ...} is a global option that specifies settings for the Create Table/Matrix dialog.
GridDefaultElement is an option for the low-level function GridBox that specifies what to insert when a new element is created interactively in a GridBox.
GridFrameMargins is an option for grids that specifies the spacing between the content of the grid and the frame surrounding it.
GridFrame is an option for grids that specifies whether a surrounding frame is drawn.