Definition of "mirror" []

• A surface capable of reflecting sufficient undiffused light to form an image of an object placed in front of it. Also called looking glass. (noun)
• Something that faithfully reflects or gives a true picture of something else. (noun)
• Something worthy of imitation. (noun)
• To reflect in or as if in a mirror: "The city mirrors many of the greatest moments of Western culture” ( Olivier Bernier). (verb-transitive)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The light that passes through this mirror is the laser beam."
• "Next to this mirror is a 20 foot version, like a child next to its mother, and a colossal 200 foot wall which only has one other like it, and that's in Malta."
• "I am Intendant Kira Nerys of the ISS Andromeda, and from what you call the mirror universe."