showdown

[ shoh-doun ]
/ ˈʃoʊˌdaʊn /

noun

the laying down of one's cards, face upward, in a card game, especially poker.
a conclusive settlement of an issue, difference, etc., in which all resources, power, or the like, are used; decisive confrontation: An international showdown was inevitable.

Origin of showdown

An Americanism dating back to 1880–85; show + down1

Example sentences from the Web for showdown

British Dictionary definitions for showdown

showdown
/ (ˈʃəʊˌdaʊn) /

noun

informal an action that brings matters to a head or acts as a conclusion or point of decision
poker the exposing of the cards in the players' hands on the table at the end of the game