Phase doorway - an entrance on the backstage spot of theater; used by performers along with other theater personnel encroachment, intrusion, invasion - any entry into a place not Beforehand occupied; "an invasion of travellers"; "an invasion of locusts" maintain - keep the eye of; "The soprano held the audience"; https://juliuspgvkz.blogsumer.com/36736385/a-secret-weapon-for-entrance-mats