The noun "winning" is a synonym of "victory". "Winnings", by contrast, refers to money won by success, typically in a competition or a game.
The noun "winning" is a synonym of "victory" (the action of someone that wins). "Winnings", by contrast, refers to money won by success, typically in a competition or a game.
It's not just about winning, but to learn about teamwork. (victory)
The lottery winner spent his winnings on luxury purchases. (prize money)
"Winning", however, is most commonly used an adjective. You can use it, always before a noun, to describe something/someone successful or victorious (e.g., "a winning ticket", "a winning team", "a winning player", "a winning personality", "a winning side", etc.)
The winning ticket was sold last Friday.
I used to be a winning player online.
Be also aware that winnings is a plural noun, which takes a verb in the plural; thus, we say "winnings are" (not "winnings is").