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Definition of "hammer" []

  • A hand tool consisting of a handle with a head of metal or other heavy rigid material that is attached at a right angle, used for striking or pounding. (noun)
  • A tool or device similar in function or action to this striking tool, as: (noun)
  • The part of a gunlock that hits the primer or firing pin or explodes the percussion cap and causes the gun to fire. (noun)
  • Music One of the padded wooden pieces of a piano that strikes the strings. (noun)
  • A part of an apparatus that strikes a gong or bell, as in a clock. (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.

Use "hammer" in a sentence
  • "When building a house, a hammer is an important tool."
  • "Sounds like the hammer is a much better tool than kissing but like Carter and Clinton did."
  • "Union officials said the Government's defence cuts were to blame for the job losses, which they described as a "hammer blow" to manufacturing, as orders for the Eurofighter Typhoon combat jet slow down."