grass roots
US /ˈɡræs ruːts/
UK /ˈɡræs ruːts/

1.
base, raízes
the most basic level of an activity or organization
:
•
The movement gained support at the grass roots level.
O movimento ganhou apoio no nível da base.
•
We need to build support from the grass roots up.
Precisamos construir apoio desde a base.
1.
de base, popular
of or relating to the ordinary people in an organization or political party, rather than its leaders or most important members
:
•
The campaign focused on grass roots organizing.
A campanha focou na organização de base.
•
He believes in grass roots democracy.
Ele acredita na democracia de base.