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

1.
base, raíces
the most basic level of an activity or organization
:
•
The movement gained support at the grass roots level.
El movimiento obtuvo apoyo a nivel de base.
•
We need to build support from the grass roots up.
Necesitamos construir apoyo desde la 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.
La campaña se centró en la organización de base.
•
He believes in grass roots democracy.
Él cree en la democracia de base.