BoxData (Built-in Mathematica Symbol)

BoxData[boxes] is a low-level representation of the contents of a typesetting cell.

CellChangeTimes (Built-in Mathematica Symbol)

CellChangeTimes is an option to Cell that specifies when changes were made to the cell.

FormatTypeAutoConvert (Built-in Mathematica Symbol)

FormatTypeAutoConvert is an option for cells that specifies whether the contents of a cell are automatically converted into a different format when the style of that cell is ...

Interrupt (Built-in Mathematica Symbol)

Interrupt[] generates an interrupt.

LineIndentMaxFraction (Built-in Mathematica Symbol)

LineIndentMaxFraction is an option for Cell, StyleBox, and Style that specifies the maximum fraction of the total page width to indent at the beginnings of lines.

PolynomialMod (Built-in Mathematica Symbol)

PolynomialMod[poly, m] gives the polynomial poly reduced modulo m. PolynomialMod[poly, {m_1, m_2, ...}] reduces modulo all of the m_i.

RegularExpression (Built-in Mathematica Symbol)

RegularExpression["regex"] represents the generalized regular expression specified by the string " regex".

Top (Built-in Mathematica Symbol)

Top is a symbol that represents the top for purposes of alignment and positioning.

WordCharacter (Built-in Mathematica Symbol)

WordCharacter represents a letter or digit character in StringExpression.

String-Oriented Output Formats (Mathematica Tutorial)

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