I think its more like "to erect"; "to stand down" is more like "hold back", "disengage" or "retreat" (intransitive). stand up (intransitive) ~= stand from a si

I think its more like "to erect"; "to stand down" is more like "hold back", "disengage" or "retreat" (intransitive). stand up (intransitive) ~= stand from a sitting or lying position stand up <direct-object> == erect, build, appoint, enact stand-up, upstanding (adjective) == moral, ethical stand-up [comedian] == actually standing on ones feet