baden-powell

< /smaɪθ/, 1st Baron,1857–1941, British general who founded the Boy Scouts in 1908 and, with his sister Lady Agnes, the Girl Guides in 1910.

noun

1. Robert Stephenson Smyth (smɪθ, smaɪθ), 1st Baron Baden-Powell. 1857–1941, British general, noted for his defence of Mafeking (1899–1900) in the Boer War; founder of the Boy Scouts (1908) and (with his sister Agnes) the Girl Guides (1910)