JANUARY Meaning of JANUARY in English [ 'dʒanjʊ(ə)ri ]■ noun ( plural Januaries ) the first month of the year.OriginOE, from L. Januarius (mensis) '(month) of Janus ' (the Roman god of doors and beginnings). Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004