norm

/ˈnȯrm/

borrowed from Latin norma "carpenterʼs square, pattern," probably borrowed from an Etruscan adaptation of Greek gnṓmōn "carpenterʼs square, indicator on a sundial"

noun

  1. an authoritative standard : model

  2. a principle of right action binding upon the members of a group and serving to guide, control, or regulate proper and acceptable behavior

  3. average: such as

average mean median norm mean something that represents a middle point. average is the quotient obtained by dividing the sum total of a set of figures by the number of figures. mean may be the simple average or it may represent value midway between two extremes.

noun

  1. an average level of development or achievement

  2. something (such as a behavior or way of doing something) that is usual or expected

She scored well above/below the norm in math.