UPFRONT Meaning of UPFRONT in English adv. & adj. colloq. --adv. (usu. up front) 1. at the front; in front. 2 (of payments) in advance. --adj. 1. honest, open, frank. 2 (of payments) made in advance. 3 at the front or most prominent. Oxford English vocab. Оксфордский английский словарь. 2012