adverb
- moreover; furthermore; also: Besides, I promised her we would come.
- in addition: There are three elm trees and two maples besides.
- otherwise; else: They had a roof over their heads but not much besides.
preposition
- over and above; in addition to: Besides a mother he has a sister to support.
- other than; except: There’s no one here besides Bill and me.
preposition
- apart from; even consideringbesides costing too much, the scheme is impractical
sentence connector
- anyway; moreover
adverb
- as well
attested from c.1200 (common after c.1400), from beside + adverbial genitive -s. Once sharing all the senses of beside, now properly limited to “in addition to, otherwise.”