ColumnAlignments is an option for the low-level function GridBox that specifies how entries in each column should be aligned.

Deployed is an option for displayed objects, cells, and notebooks that specifies whether their contents should be considered deployed, so that elements such as Slider, ...

Editable is an option for displayed objects, cells, and notebooks that specifies whether their contents can be edited interactively using the front end.

HoldPattern[expr] is equivalent to expr for pattern matching, but maintains expr in an unevaluated form.

IntegerDigits[n] gives a list of the decimal digits in the integer n. IntegerDigits[n, b] gives a list of the base b digits in the integer n. IntegerDigits[n, b, len] pads ...

MapThread[f, {{a_1, a_2, ...}, {b_1, b_2, ...}, ...}] gives {f[a_1, b_1, ...], f[a_2, b_2, ...], ...}. MapThread[f, {expr_1, expr_2, ...}, n] applies f to the parts of the ...

Null is a symbol used to indicate the absence of an expression or a result. It is not displayed in ordinary output. When Null appears as a complete output expression, no ...

Skeleton[n] represents a sequence of n omitted elements in an expression printed with Short or Shallow. The standard print form for Skeleton is <<n>>.

Transparent represents perfect transparency in graphics or style specifications.

Text strings. The quotes are not included in standard Mathematica output form. In input form, the quotes are included.