Buck Definition of Buck by Merriam-Webster

1 or plural buck : a male animal especially : a male deer or antelope. 2a : a male human being : man. b : a dashing fellow : dandy. 3 or plural buck : antelope. 4a : buckskin also : an article (such as a shoe) made of buckskin. b informal. (1) : dollar sense 3b I only had a buck in my pocket.…