Mainstream

[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.
adjective
4.
belonging to or characteristic of a principal, dominant, or widely accepted group, movement, style, etc.: mainstream Republicans; a mainstream artist;
mainstream media.
5.
of, relating to, or characteristic of jazz falling historically between Dixieland and modern jazz; specifically, swing music.
Compare (def 4).
verb (used with object)
6.
to send into the mainstream; cause to join the main force, group, etc.:
to mainstream young people into the labor force.
7.
to place (students with disabilities) in regular school classes.
verb (used without object)
8.
to join or be placed in the mainstream.
/ˈmeɪnˌstriːm/
noun
1.

adjective
2.
of or relating to the style of jazz that lies between the traditional and the modern
n.

also main-stream, main stream, “principal current of a river,” 1660s, from main (adj.) + stream (n.); hence, “prevailing direction in opinion, popular taste, etc.,” a figurative use first attested in Carlyle (1831). Mainstream media attested by 1980 in language of U.S. leftists critical of coverage of national affairs.

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

adjective

Conventional; materialistic: It’s a mainstream movie; don’t waste your time (1980s+ Students)