Is “Winning” a Scrabble word?
Yes
WINNING
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Winning
/ˈwɪnɪŋ/
verb
1.To conquer, defeat.
2.To reach some destination or object, despite difficulty or toil (now usually intransitive, with preposition or locative adverb).
3.To triumph or achieve victory in (a game, a war, etc.).
noun
1.The act of obtaining something, as in a contest or by competition.
2.(chiefly in the plural) The money, etc., gained by success in competition or contest, especially in gambling.
3.A new opening.
adjective
1.That constitutes a win.
“the winning entry in the competition”
2.That leads to success.
“a winning formula, strategy, etc.”
3.Attractive.
“a winning smile”