Definition of "dagger" []

• A short pointed weapon with sharp edges. (noun)
• Something that agonizes, torments, or wounds. (noun)
• Printing See obelisk. (noun)
• Printing A double dagger. (noun)
• Look daggers at To glare at angrily or hatefully. (idiom)

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 term dagger itself denotes a sense of mystery, danger and mischief."
• "You start off well enough with lances, but only the dagger is an improvement: it goes faster."
• "As the United States staggers past the third anniversary of its misadventure in Iraq, the dagger is already poised, the myth is already being perpetuated."