brownie
/ˈbraunɪ; `braʊnɪ/ n
1 small good-natured fairy 棕仙（性情善良的小精灵）.
2 Brownie (also Brownie Guide) member of the junior branch of the Guides (who wear brown uniforms) （身著褐色制服的）幼年童子军.
3 (esp US) small rich cake made with chocolate and nuts （带坚果的）巧克力蛋糕.