BOULEVARD Meaning of BOULEVARD in English [ 'bu:ləvα:d ]■ noun a wide street, typically one lined with trees.OriginC18: Fr., 'a rampart' (later 'a promenade on the site of one'), from Ger. Bollwerk (see bulwark ). Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004