besides 2023.03.13 Meaning of besides in English Adverb US /bɪˈsaɪdz/ UK /bɪˈsaɪdz/ 1. in addition to this; also It's cold: besides, it's snowing. Preposition US /bɪˈsaɪdz/ UK /bɪˈsaɪdz/ 1. in addition to Who come besides you?