Size

The word size may refer to how big something is. In particular:

Measurement, the process or the result of determining the magnitude of a quantity, such as length or mass, relative to a unit of measurement, such as a meter or a kilogram
Dimensions, including length, width, height, diameter, perimeter, area, volume
Clothing sizes such as shoe size
Body dimensions (Anthropometry)
- Human height, the distance from the bottom of the feet to the top of the head in a human body standing erect
- Human weight
In statistics (hypothesis testing), the size of the test refers to the rate of false positives, denoted by α
In computing, file size
size (Unix), a command-line Unix tool
Magnitude (mathematics), 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), a systematic way to assign to each suitable subset a number
- cardinality (equal if there is a bijection), of a set is a measure of the "number of elements of the set"
- for well-ordered sets: ordinal number (equal if there is an order-isomorphism)
Resizing (fiction), a theme in fiction, in particular in fairy tales, fantasy, and science fiction

See also