The verb assemble has 3 senses (first 3 from tagged texts)
1. (15) assemble, piece, put together, set up, tack, tack together -- (create by putting components or members together; "She pieced a quilt"; "He tacked together some verses"; "They set up a committee")
2. (13) meet, gather, assemble, forgather, foregather -- (collect in one place; "We assembled in the church basement"; "Let's gather in the dining room")
3. (1) assemble, gather, get together -- (get people together; "assemble your colleagues"; "get together all those who are interested in the project"; "gather the close family members")