Grass-roots and Rank and file

Rank and file and grass-roots are semantically related. in ordinary people topic. In some cases you can use "Rank and file" instead a noun phrase "Grass-roots".

Rank and file noun - The body of the community as contrasted with the elite.

Grass-roots and rank and file are semantically related. Sometimes you can replace phrase "Grass-roots" with "Rank and file", this phrases are similar.