Interrupt[] generates an interrupt.
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[poly, m] gives the polynomial poly reduced modulo m. PolynomialMod[poly, {m_1, m_2, ...}] reduces modulo all of the m_i.
Position[expr, pattern] gives a list of the positions at which objects matching pattern appear in expr. Position[expr, pattern, levelspec] finds only objects that appear on ...
Top
(Built-in Mathematica Symbol) Top is a symbol that represents the top for purposes of alignment and positioning.
WordCharacter represents a letter or digit character in StringExpression.
PadLeft
(Built-in Mathematica Symbol) PadLeft[list, n] makes a list of length n by padding list with zeros on the left. PadLeft[list, n, x] pads by repeating the element x. PadLeft[list, n, {x_1, x_2, ...}] pads ...
Text strings. The quotes are not included in standard Mathematica output form. In input form, the quotes are included.
PolarAxes is an option for sector charts and polar plots that specifies whether polar axes should be drawn.
PolarAxesOrigin is an option for sector charts and polar plots that specifies where polar axes should be drawn.