: 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
Early adopters are largely served; mainstream buyers, price-sensitive and less tolerant of EV inconveniences, aren't adopting as fast, especially without incentives. Michael Harley, Forbes.com, 22 July 2026 Why Tech Neck Has Become So Common Three forces are driving tech neck from niche complaint to mainstream diagnosis. Hanna Wickes, Kansas City Star, 22 July 2026
Adjective
Achieving mainstream stardom hasn’t stopped Cale, Jacobs and Scorsese from maintaining the glimmer of coolness decades into their careers. Zoe Sottile, CNN Money, 24 July 2026 Only now is the time approaching when the first waves of silicon-carbon batteries in mainstream gadgets are stress-tested in real-world conditions towards what might be more advanced stages of battery degradation. Andrew Williams, Forbes.com, 21 July 2026
Verb
This week’s advisory committee meeting represents a pivotal moment in determining whether some of these peptides move closer to mainstream medical practice or remain largely outside it. Jacqueline Howard, CNN Money, 22 July 2026 Bouclé has moved from statement piece to mainstream upholstery, which means far more households are now living with a fabric that requires specific care most owners have not researched. Ryan Brennan, Miami Herald, 22 July 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 27 Jul. 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 tobacco 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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