Pronunciation: (yäs), [key]
1. a card game for two persons that is played with a 36-card pack made by removing all cards below the sixes from a regular 52-card pack, in which point values are assigned to certain melds and to certain cards taken in tricks.
2. Also,jasz.the jack of trumps in klaberjass.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.