Definition:Dimension


 * Dimension (Geometry)


 * Dimension (Linear Algebra)


 * Dimensions of a Matrix


 * Dimension (Topology)


 * Dimension of a Representation


 * Krull Dimension of a Ring


 * Dimension of an Ordinary Differential Equation


 * Dimension of Hilbert Space

All the above definitions are connected.

It may also refer to:
 * Dimension (Measurement): A property of a physical quantity that defines the type of units of measurement are needed to specify it.