grassroots
adjective
grass·roots
ˈgras-ˌrüts
-ˌru̇ts
variants
or less commonly grassroot
ˈgras-ˌrüt
-ˌru̇t
1
: basic, fundamental
the grassroots factor in deciding to buy a house
2
: being, originating, or operating in or at the grass roots
a grassroots organization
grassroots political support
3
: not adapted from or added to an existing facility or operation : totally new
a grassroots refinery
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Merriam-Webster unabridged



