amateurs

a tournament in which both professionals and amateurs may play n

n a clear or unobstructed space or expanse of land or water n where the air is unconfined n a tournament in which both professionals and amateurs may play n information that has become public v cause to open or to become open v start to operate or function or cause to start operating or functioning v become open v begin or set in action, of meetings, speeches, recitals, etc. v spread out or open from a closed or folded state v make available v become available v have an opening or passage or outlet v make the opening move v afford access to v display the contents of a file or start an application as on a computer

especially, those produced by amateurs.