/ ˈbraʊni; NAmE / noun
1.
[ C ] a thick soft flat cake made with chocolate and sometimes nuts and served in small squares :
a fudge brownie
2.
the Brownies [ pl. ] a branch of the Scout Association for girls between the ages of seven and ten or eleven :
to join the Brownies
3.
[ C ] Brownie ( BrE also ˈBrownie Guide ) a member of the Brownies
—compare Cub , Guide , Scout