Phase doorway - an entrance for the backstage location of theater; used by performers and also other theater personnel encroachment, intrusion, invasion - any entry into a region not Formerly occupied; "an invasion of holidaymakers"; "an invasion of locusts" hold - maintain the attention of; "The soprano held the viewers"; https://entrancemats02334.mybuzzblog.com/17768402/5-tips-about-entrance-mats-you-can-use-today