Size

• Measurement
• Dimensions: length, width, height, diameter, perimeter, area, volume
• Clothing sizes such as shoe size or dress size
• Body dimensions
• Human height
• Human weight
• In statistics (hypothesis testing), the size of the test refers to the rate of false positives, denoted by α.
• In computing, filesize
• size (Unix), a command-line Unix tool.
• Magnitude or size of a mathematical object.
• Magnitude of brightness or intensity of a star or an earthquake as measured on a logarithmic scale.
• In mathematics there are, in addition to the dimensions mentioned above (equal if there is an isometry), various other concepts of size for sets:
• measure (mathematics)
• cardinality (equal if there is a bijection)
• for well-ordered sets: ordinal number (equal if there is an order-isomorphism)

Size can also refer to:

• Sizing, gelatinous or glutinous substances used as a glaze or filler for porous materials such as paper or cloth