Pronunciation: (bi-sīdz'),[key] —adv. 1. moreover; furthermore; also: Besides, I promised her we would come. 2. in addition: There are three elm trees and two maples besides. 3. otherwise; else: They had a roof over their heads but not much besides.
—prep. 1. over and above; in addition to: Besides a mother he has a sister to support. 2. other than; except: There's no one here besides Bill and me.