Definition of opponent for English Language Learners. : 1  a person, team, group, etc., that is competing against another in a contest. : 2  a person, group, etc., that is against something (such as an action, law, or system) : someone or something that does not want something to exist, be done, etc.
On the Celtic calendar, the traditional first day of winter is 1 November (Samhain, the Celtic origin of Halloween); spring starts 1 February (Imbolc, the Celtic origin of Groundhog Day); summer begins 1 May (Beltane, the Celtic origin of May Day); the first day of autumn is 1 August (Celtic Lughnasadh).
Email the author | Follow on Twitter. on March 06, 2015 at 6:03 PM, updated March 06, 2015 at 6:35 PM. Comments. CLEVELAND, Ohio -- The first day of spring 2015 will be on March 20, with winter officially ending at 6:45 p.m. that day. Summer 2015 will begin on June 21, fall on Sept. 23 and winter on Dec. 21.