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).
a Friday 2 years 4 months and 7 days from today. The first day of winter is known as the winter solstice. It is the shortest day and the longest night of the year. Days Until: Christmas Eve Christmas New Years Eve New Years Day MLK Day Groundhog Day Valentines Day Presidents Day St Patricks Day.