mainstream

American  

[meyn-streem] / ˈmeɪnˌstrim /

noun

1. the principal or dominant course, tendency, or trend.

   the mainstream of American culture.

2. a river having tributaries.

3. regular school classes or regular schools.

   keeping autistic students in the mainstream.

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adjective

1. belonging to or characteristic of a principal, dominant, or widely accepted group, movement, style, etc..

   mainstream Republicans;

   a mainstream artist;

   mainstream media.

2. of, relating to, or characteristic of jazz falling historically between Dixieland and modern jazz; specifically, swing music.

verb (used with object)

1. to send into the mainstream; cause to join the main force, group, etc..

   to mainstream young people into the labor force.

2. to place (students with disabilities) in regular school classes.

verb (used without object)

1. to join or be placed in the mainstream.

mainstream British  

/ ˈmeɪnˌstriːm /

noun

1. 1. the main current (of a river, cultural trend, etc)

      in the mainstream of modern literature

   2. ( as modifier )

      mainstream politics

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adjective

1. of or relating to the style of jazz that lies between the traditional and the modern

mainstream Cultural  

1. The prevailing current or direction of a movement or influence: “The candidate's speech represented the mainstream thinking on economic policy.”

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Etymology

Origin of mainstream

First recorded in 1660–70; main ¹ + stream

Explanation

Mainstream describes what's viewed by most people in a society as "normal," like the mainstream view that everyone should get married, move to the suburbs, and have children as soon as they can. Something that's mainstream is conventional, or the usual way of doing things. If you're talking about the mainstream in fashion, you mean the ordinary clothes that most people wear and which is found in all the malls — nothing too weird or outlandish. In the 1600s, mainstream described the prevailing current of a river, with the first recorded use of its meaning of prevailing taste or opinion in 1831.

Example Sentences

Meta Platforms looks to finally be taking smart glasses into the mainstream with the success of its Ray-Ban branded eyewear.

From Barron's • Apr. 21, 2026

When I learned I had chronic myelogenous leukemia at age 37, in 1991, the internet was still nascent, there were no mainstream browsers yet and little consumer-friendly medical content online.

From The Wall Street Journal • Apr. 19, 2026

Therein lies the multitude of problems with using generative AI for mainstream theatrical filmmaking, and Soderbergh’s myopic reasoning for implementing it.

From Salon • Apr. 17, 2026

Despite that, they've been a key part in heavier music breaking through into the mainstream - and last year headlined Reading and Leeds Festival.

From BBC • Apr. 17, 2026

I couldn’t face going back to Providence after Italy, so I decided to give mainstream academia a try.

From "Dreaming in Cuban" by Cristina García