preposition

In addition to; apart from.

I have no other family besides my parents

apart from,other than,aside from,but for,save for,not counting,excluding,not including,except,with the exception of,excepting,bar,barring,leaving aside,beyond

adverb

In addition; as well.

I’m capable of doing the work, and a lot more besides

as well,too,in addition,also,into the bargain,on top of that,to boot