Dum"my (?), a. [See Dumb.]
1.
Silent; mute; noiseless; as a dummy engine.
2.
Fictitious or sham; feigned; as, a dummy watch.
Dummy car. See under Car.
© Webster 1913.
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.
© Webster 1913.