- the middle of winter.
- the winter solstice, around December 22.
- of, relating to, or occurring in the middle of the winter.
- the middle or depth of the winter
- (as modifier)a midwinter festival
- another name for winter solstice
n.also mid-winter, Old English midwinter, also midde winter; see mid + winter (n.). The middle of winter, especially the period around the winter solstice (Dec. 21). As an adjective from mid-12c.