Stage door - an entrance for the backstage area of theater; used by performers and various theater staff encroachment, intrusion, invasion - any entry into an area not Beforehand occupied; "an invasion of holidaymakers"; "an invasion of locusts" maintain - keep the eye of; "The soprano held the audience"; "This https://entrance-mats13344.theisblog.com/38174054/the-best-side-of-entrance-mats