: a prevailing current or direction of activity or influence
mainstream adjective

mainstream

2 of 3

adjective

main·​stream
: having, reflecting, or being compatible with the prevailing attitudes and values of a society or group
mainstream media
movies that appeal to a mainstream audience
mainstream success
mainstreamed; mainstreaming; mainstreams

transitive verb

1
: to place (a student, such as a disabled child) in regular school classes
2
: to incorporate in the mainstream

Examples of mainstream in a Sentence

Verb The poor should be mainstreamed into the private health-insurance system. Ideas that were once controversial have now become mainstreamed.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
Because the platform focuses on older adults, users do not have to begin by filtering through the full age range found on a mainstream service. — Miami Herald, 25 Sep. 2026 Since coming to power in 2012, the ruling populist party has gradually established control over mainstream media while often describing embattled critical outlets as enemies of the state. — Arkansas Online, 24 Sep. 2026
Adjective
Ghosts have gone more mainstream than vampires, no longer grouped with the other weird freaks— the zombies and the werewolves, that paranormal genre once ascribed only to lovers of the macabre. — Literary Hub, 28 Sep. 2026 The president talks about his concerns with a lot of these mainstream media outlets. — ABC News, 27 Sep. 2026
Verb
The tie-up arrives as anime graduates from niche fandom to mainstream commercial territory. — Naman Ramachandran, Variety, 24 Sep. 2026 Disaffected conservatives have created new publications, such as The Bulwark and The Contrarian, that cater to a spectrum of readers, from moderate Republicans to mainstream Democrats. — David A. Graham, The Atlantic, 18 Sep. 2026 See All Example Sentences for mainstream

Word History

First Known Use

Noun

1599, in the meaning defined above

Adjective

1955, in the meaning defined above

Verb

1974, in the meaning defined at sense 1

Time Traveler
The first known use of mainstream was in 1599

Browse Nearby Words

Cite this Entry

“Mainstream.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mainstream. Accessed 28 Sep. 2026.

Kids Definition

mainstream

noun
main·​stream
-ˌstrēm
: the principal current or direction of activity or influence

Medical Definition

mainstream

adjective
: relating to or being smoke that is drawn (as from a cigarette) directly into the mouth of the smoker and is usually inhaled into the lungs compare sidestream
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