Definition of "combination" []

• The act of combining or the state of being combined. (noun)
• The result of combining. (noun)
• An alliance of persons or parties for a common purpose; an association. (noun)
• A sequence of numbers or letters used to open a combination lock. (noun)
• Mathematics One or more elements selected from a set without regard to the order of selection. (noun)

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.

• "Using several signal systems in combination is similar to adding more pipes to a water system."
• "Many Egyptians rolled their eyes at what they described as the combination of political ambition and the Brotherhood's tactic of accommodation that they said had historically been employed by the group."
• "An idea combination is a really dark area (the mountains in the desert southwest are good candidates) and your eyes and possibly a nice pair of image stabilized binoculars (10x50 or 14x50 canons are really nice - I have a pair of 15x50s)."