the season between autumn and spring comprising in the northern hemisphere usually the months of December, January, and February or as reckoned astronomically extending from the December solstice to the March equinox. the colder half of the year. YEAR. a period of inactivity or decay. to pass the winter. to feed or find food during the winter —used with on. to keep, feed, or manage during the winter. of, relating to, or suitable for winter. sown in the autumn and harvested in the following spring or summer.