<p><strong>Noun</strong></p><ul><li>a standard, model, or pattern.</li><li>general level or average: Two cars per family is the norm in most suburban communities.</li><li>a behavior pattern or trait considered typical of a particular social group: The patients regained the norms of everyday life after their hospitalization.</li><li>a pattern or standard of behavior expected of each member of a social group: In many countries, cultural norms result in women bearing primary responsibility for childcare.</li><li>a designated standard of average performance of people of a given age, background, etc.</li><li>a real-valued, nonnegative function whose domain is a vector space, with properties such that the function of a vector is zero only when the vector is zero.</li></ul><p><strong>Verb</strong></p><ul><li>to arrange in a series of grades; class; sort: a machine that grades two thousand eggs per hour.</li><li>to assign a grade to (a student's work); mark: I graded forty tests last night.</li><li>to cause to pass by degrees, as from one color or shade to another.</li></ul>