PRINCIPALLY Meaning of PRINCIPALLY in English adv.Principally is used with these adjectives: ↑ concerned , ↑ responsiblePrincipally is used with these verbs: ↑ aim , ↑ consist , ↑ direct , ↑ focus Oxford Collocations English Dictionary. Оксфордский английский словарь словосочетаний . 2012