Jamboree used in English, as a borrowed foreign word, with the ending -ree. The word Jamboree is a transitive verb with a direct action of the primary word Jambo. For example, an attendee of a Jambo is a Jamboree. The word "Jamboree" is used primarily by the Scouting program before the first Boy Scout "Jamboree" in 1920. The word has also come to mean "a lavish or boisterous celebration or party" outside of the Scouting program. Baden-Powell deliberately chose the name "Jamboree" where attendees were warmly welcomed attending this first Boy Scout rally or meeting with the word "Jambo!" Many, at
Hubert S. Martin a Scout troop in London in 1909. He later became an official in The Boy Scouts Association. Martin maintained an independence from and, at times, uneasy relationship with Robert Baden-Powell. He was one of The Boy Scouts Association instructors at the first Wood Badge course held at Gilwell Park, from 8 to 19 September 1919. In 1920, while serving as The Boy Scout Association's International Commissioner, Martin also became the first director of the Boy Scouts International Bureau. The Bureau was established at 25, Buckingham Palace Road, London, and Martin was initially appointed as Honorary Director. In late 1923, Martin