I. dum ‧ my 1 /ˈdʌmi/ BrE AmE noun ( plural dummies ) [countable]
[ Date: 1500-1600 ; Origin: ⇨ ↑ dumb 1 ]
1 . FOR CLOTHES a model that is the shape and size of a person, especially used in order to show clothes in a shop or when you are making clothes:
a shop-window dummy
a tailor’s dummy
2 . COPY an object that is made to look like a tool, weapon, vehicle etc but which you cannot use:
During practice runs, the warheads in the missiles will be dummies.
3 . DOLL a small model of a person, with a mouth that can be moved so that it looks as though it is talking, used for entertainment:
a ventriloquist’s dummy
4 . SPORTS British English a move in a sport such as football in which a player pretends to pass the ball but does not, in order to deceive the other team’s players
5 .
FOR BABIES British English a specially shaped rubber object that you put in a baby’s mouth for it to suck SYN pacifier American English
6 . STUPID PERSON especially American English informal someone who is stupid:
No, you dummy. The other hand.
7 . CARD GAME cards that are placed on the table by one player for all the other players to see in a game of ↑ bridge
⇨ spit the dummy at ↑ spit (9)
II. dummy 2 BrE AmE adjective [only before noun]
a dummy tool, weapon, vehicle etc is made to look like a real one but you cannot use it SYN replica :
a dummy rifle