2. (in ombre, skat, and other card games) any of the highest trumps.
3. a domino game in which halves are matched so as to make a total of seven.
▪ any of the dominoes which have seven spots altogether, together with the double blank.
Word OriginSpanish, literally ‘killer’, from matar ‘to kill’, from Persian māt ‘dead’; senses relating to games are extended uses, expressing a notion of ‘dominance’.