dummy
[noun]
Synonyms:
- model, figure, form, manikin, mannequin
- copy, counterfeit, duplicate, imitation, sham, substitute
- fool, blockhead, dunce, idiot, nitwit (informal), numbskull or numskull, oaf, simpleton
[adjective]
Synonyms:
- imitation, artificial, bogus, fake, false, mock, phoney or phony (informal), sham, simulated

[TahlilGaran] English Synonym Dictionary ▲

I. dum‧my¹ /ˈdʌmi/ noun (plural dummies) [countable]
[Date: 1500-1600; Origin: ⇒ dumb¹]

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 Synonym : 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)

[TahlilGaran] Dictionary of Contemporary English ▲

II. dummy² adjective [only before noun]
a dummy tool, weapon, vehicle etc is made to look like a real one but you cannot use it Synonym : replica:
a dummy rifle

[TahlilGaran] Dictionary of Contemporary English ▲