weekly /ˈwiːk.li/adjective 2adverb 2noun 1forms 1 adjective2 •Happening once a week, or every week.He's going for his weekly check-up at the hospital.In summer, we cut the grass on a weekly basis. •Of or relating to a week. adverb2 •Once every week.She visits her mother weekly. •Every week. noun1 •A publication that is published once a week. formsweeklies