"Open submission" means that anyone is allowed to submit something, such as a proposal, application, or piece of work, without any restrictions or limitations. Full definition
A spectacular array of painting, sculpture, photography and architectural design is on offer in the largest and oldest open submission exhibition in the world. (artlyst.com)
Through open submissions, we consider an estimated hundreds of projects. (sundance.org)
Guest Room is a monthly online exhibition with open submissions curated in real - time by personalities from the international photography scene. (dergreif-online.de)