English Reference
noun · verb

norm

n. · v.
US /ˈnɔɹm/ UK /nˈɔːm/ norm UK spelling norm's, norm's

  1. 01 B2 Upper Intermediate

    n.a rule or way of behaving that most people in a group follow and expect.

    n.a standard or pattern of social behavior that is accepted or expected within a particular group or community.

    Simple

    In some cultures, it is the norm to take off your shoes before entering a house.

    In context

    Sociologists study how cultural norms evolve over time, particularly in response to rapid technological changes that disrupt traditional social interactions.

    Usage

    Often used in the plural 'norms' when discussing cultural expectations.

  2. 02 B2 Upper Intermediate

    n.something that is usual, typical, or expected.

    n.a situation or level of performance that is typical or average for a particular group.

    Simple

    Working late every night has unfortunately become the norm at this office.

    In context

    The mild temperatures recorded this winter are well above the seasonal norm for this region of the country.

  3. 03 C1 Advanced Technical Math

    n.a rule used to calculate the length or size of a vector.

    n.a function that assigns a strictly positive length or size to each vector in a vector space.

    Simple

    The professor explained how to calculate the norm of a vector in three-dimensional space.

    In context

    In linear algebra, the Euclidean norm provides the standard distance from the origin to a given point in space.

  4. 04 C2 Proficiency Technical Math

    v.to set a standard for something or to give a mathematical space a rule for length.

    v.to normalize or to endow a mathematical structure, such as a vector space, with a norm.

    Simple

    The researchers had to norm the data before they could compare the two different groups.

    In context

    The mathematician demonstrated how to norm the vector space using a non-standard metric to achieve the desired convergence properties.

    Usage

    This verb is transitive and requires a direct object.

Usage different norm · social norm

It is a footballing norm to have wise heads around to protect young players.

The Guardian· 24 Aug 2026
This entry
Level B2 · Upper Intermediate
Frequency Frequent
Updated