English Reference
noun · adjective · verb

mainstream

n. · adj. · v.
US /ˈmeɪnˌstɹim/ UK /mˈeɪnstɹiːm/ main·stream UK spelling mainstreams

  1. 01 B2 Upper Intermediate

    n.the ideas, attitudes, or activities that are shared by most people and regarded as normal or conventional.

    n.the prevailing current of thought, influence, or activity within a society. Uncountable in this abstract sense.

    Simple

    His views on the environment have finally moved into the mainstream.

    In context

    While his early theories were dismissed as radical, they have since been absorbed into the scientific mainstream and are now taught in every university.

  2. 02 B2 Upper Intermediate

    adj.accepted by most people rather than a small or specialized group.

    adj.representing the most widespread or common attitudes and values of a society.

    Simple

    Mainstream media outlets are often criticized for ignoring smaller news stories.

    In context

    The director transitioned from experimental short films to mainstream Hollywood blockbusters without losing his unique visual style.

  3. 03 C1 Advanced Formal

    v.to make something popular or accepted by the general public.

    v.to bring a particular idea, practice, or group into the principal current of society or a specific field. Transitive — takes a direct object.

    Simple

    The government is trying to mainstream renewable energy by offering tax breaks.

    In context

    The organization works to mainstream disability rights into every level of urban planning and public policy.

    popularizenormalizeintegrate
    marginalize
  4. 04 C1 Advanced American EnglishTechnical Education

    v.to teach students with special needs in the same classrooms as other students.

    v.to integrate students with disabilities or special educational needs into regular school classes. Transitive — takes a direct object.

    Simple

    The school decided to mainstream several students who previously attended a separate center.

    In context

    Advocates argue that mainstreaming students with learning difficulties fosters a more empathetic and inclusive environment for the entire student body.

    Usage

    Often used in the passive voice: 'the student was mainstreamed'.

    segregate

Usage mainstream media

For years, most mainstream multiplexes booked movies in standard two-week blocks.

The Guardian· 13 Aug 2026

With no other mainstream options, the parody candidate Count Binface, was Farage’s nearest competitor, winning 9,455 votes, or one in four of the votes cast.

The Guardian· 14 Aug 2026

From main + stream. Cognate with Icelandic meginstraumur (“a main current, mainstream”).

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Level C1 · Advanced
Frequency Common
Updated