Dummy

1. a. Fictitious or sham; feigned; as, a dummy watch.
2. a. Silent; mute; noiseless; as a dummy engine.
3. n. A sham package in a shop, or one which does not contain what its exterior indicates.
4. n. 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.
5. n. One who plays a merely nominal part in any action; a sham character.
6. n. A thick-witted person; a dolt.
7. n. A locomotive with condensing engines, and, hence, without the noise of escaping steam; also, a dummy car.
8. n. The fourth or exposed hand when three persons play at a four-handed game of cards.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.