1906 July 72 Castle, work-room, think-room.
1958 27 466/2 ‘Think Room.’ This room is equipped with soft furniture and a selected list of periodicals and books in various fields... Students go there to think.
2005 (Nexis) 17 Oct. E3 Known as the ‘Think Room’, this 30-by-30-foot box of a space serves as an idea incubator for many of the company's 300 employees.