Stage doorway - an entrance into the backstage place of theater; utilized by performers together with other theater personnel encroachment, intrusion, invasion - any entry into a place not previously occupied; "an invasion of tourists"; "an invasion of locusts" maintain - keep the attention of; "The soprano held the viewers"; https://entrance-mats89001.glifeblog.com/36570355/the-fact-about-entrance-mats-that-no-one-is-suggesting