仿制品（dummy的名词复数）

Dummy \Dum"my\, n.; pl. {Dummies}.
1. One who is dumb. --H. Smith.

2. A sham package in a shop, or one which does not contain
what its exterior indicates.

3. An imitation or copy of something, to be used as a
substitute; a model; a lay figure; as, a figure on which
clothing is exhibited in shop windows; a blank paper copy
used to show the size of the future book, etc.

4. (Drama) One who plays a merely nominal part in any action;
a sham character.

5. A thick-witted person; a dolt. [Colloq.]

6. (Railroad) A locomotive with condensing engines, and,
hence, without the noise of escaping steam; also, a dummy
car.

7. (Card Playing) The fourth or exposed hand when three
persons play at a four-handed game of cards.

8. A floating barge connected with a pier. --Knight.

{To play dummy}, to play the exposed or dummy hand in cards.
The partner of the dummy plays it.