(soccer) The dismissal from the game of a player who has already been booked and would receive another yellow card, indicated by the referee by showing the player the yellow immediately followed by the red card, distinct from and less grave than a straight red card.

(historical) The period of Egyptian history from the end of the Middle Kingdom midway through the 13th dynasty to the start of the New Kingdom at the beginning of the 18th dynasty, characterized by political disintegration and later the conquest of Egypt by the Hyksos.

plural of second-order logic

A position in rugby football in the back line.

plural of ten-second car

(informal) A period of intense conflict between the two Koreas in the 1960s, that included the attempted assassination of the South Korean president and the capture of the U.S.S. Pueblo by North Korea.

plural of second five-eighth

The tendency of small, elegant, and successful systems to be succeeded by overengineered, bloated systems, due to inflated expectations and overconfidence.

plural of second-system syndrome

plural of second-system effect