Definition of "mainstream" in English

adjective

1. Used or accepted broadly rather than by small portions of population, market, scientific community, etc.

   • They often carry stories you won't find in the mainstream media.

noun

1. The principal current in a flow, such as a river or flow of air

2. (usually with the) That which is common; the norm.

   • ideas outside of the mainstream

verb

1. (transitive) To popularize, to normalize, to render mainstream.

2. (intransitive) To become mainstream.

3. (transitive, education, chiefly US) To educate (a disabled student) together with non-disabled students.