domino, online at domino.com, save money on hot items when shopping on domino when applying our coupons, promo codes during checkout. Trust us, these coupons are good. Make the best of our domino promo codes to get 20% OFF. All discounts are totally free to use. Dominoes (or dominos ) is a game played with rectangular "domino" tiles. The domino gaming pieces make up a domino set , sometimes called a deck or pack . The traditional Sino-European domino set consists of 28 dominoes, colloquially nicknamed bones , cards , tiles , tickets , stones , or spinners . Each domino is a rectangular tile with a line dividing its face into two square ends . Each end is marked with a number of spots (also called pips, nips, or dobs ) or is blank . The backs of the dominoes in a set are indistinguishable, either blank or having some common design. A domino set is a generic gaming device, similar to playing cards or dice, in that a variety of games can be played with a set.The earliest mention of dominoes is from Song dynasty China, found in the text Former Events in Wulin .The name "domino" is from the resemblance to a kind of hood worn during the Venice carnival.