How do you say friendship in Arabic?
— صداقة (f) (Sadaaqa)

Specialized synonyms for friendship in Arabic
companyشركة (sharika)
Derivative terms for friendship in Arabic
friendصديق (m) (Sadiiq); صديقة (f) (Sadiiqa); (m) (SaaHib)صاحبة (f) (SaaHiba)