noun
plural dummies
[count] chiefly US informal :a stupid person
[count] :a doll that is shaped like and is as large as a person
[count] :a copy of a finished object that is used during practice or training
[count] :a large doll with a movable mouth that is used by a performer
[noncount] :the set of cards in a game of bridge that are played faceup so everyone can see them
[count] Brit :pacifier
adjective
always used before a noun
looking real but not functioning or able to be used