What is the meaning of Winner-take-all?

Of or pertaining to a contest, election, or other competition in which only the winner is rewarded and none of the losers receive anything.

Of a market in which a product or service that is only slightly better than its competitors receives a disproportionately large share of revenue.

Of a neural network model: organized so that neurons in a layer compete with each other for activation.

Source: wiktionary.org