chiefly(especially or primarily; above all) adverb [UK: ˈtʃiː.fli] [US: ˈtʃiː.fli]Matter is composed chiefly of nothing. = La materia está compuesta principalmente de nada.
mainly(chiefly; for the most part) adverb [UK: ˈmeɪn.li] [US: ˈmeɪn.li]He worked mainly as a freelancer. = Él trabajo principalmente por cuenta propia.
mostly(for the most part) adverb [UK: ˈməʊst.li] [US: ˈmoʊst.li]Sulfur has many uses, mostly industrial. = El azufre tiene multitud de usos, principalmente industriales.
predominantly(in a predominant manner) adverb [UK: prɪ.ˈdɒ.mɪ.nənt.li] [US: prə.ˈdɑː.mə.nənt.li]
