local or person-to-person. A typical grassroots effort might include a door-to-door education and survey campaign. Includes political, educational, artistic, and especially collegiate movements involving the common people as constituting a fundamental politico-economic group
meaning "of the people, for the people" originally used and abused by hippies.
and the word became unanimous with any and all political movements in the USA.
since it's inception it has became the best example of Semantic satiation as the word has lost all meaning due to the frequency of use.
"we must start a grassroots movement to show the government we mean business." -some hippy
"this business is so grassroots." -some starbucks hipster
"the band started as a grassroots, then eventually became the funk rock band it is today." -some nonsense magazine