Yes, winter is playable
...and is worth 10 points.
Found in the following dictionaries
Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
"Winter" Definition
noun
A period of time characterized by coldness, misery, barrenness, or death.
A year as expressed through the recurrence of the winter season.
The usually coldest season of the year, occurring between autumn and spring, extending in the Northern Hemisphere from the winter solstice to the vernal equinox, and popularly considered to be constituted by December, January, and February.
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.
adjective
Grown during the season of winter: winter herbs.
Of, relating to, occurring in, or appropriate to the season of winter: winter blizzards; winter attire.
Of, relating to, or suitable for winter.
Sown in the autumn and harvested in the following spring or summer.
verb-intransitive
To feed in winter. Used with on: deer wintering on cedar bark.
To spend the winter: wintered in Arizona.
verb-transitive
To lodge, keep, or care for during the winter: wintering the sheep in the stable.
verb
To feed or find food during the winter.
To keep, feed, or manage during the winter.
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