Definition of "addition" []

  • The act or process of adding, especially the process of computing with sets of numbers so as to find their sum. (noun)
  • Something added, such as a room or section appended to a building. (noun)
  • In addition Also; as well. (idiom)
  • In addition to Over and above; besides. (idiom)
  • The act, process, or result of adding (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.

  • A person or thing that is added or acquired (noun)
  • A mathematical operation in which the sum of two numbers or quantities is calculated. Usually indicated by the symbol + (noun)
  • A part added to a building or piece of land; annexe (noun)
  • A title following a person's name (noun) (c) HarperCollins Publishers Ltd 2016

Use "addition" in a sentence
  • "Here, in addition, is an index to those houses, with special notes of my own to every house."
  • "She has been well cautioned, and, in addition, is not the sort of person who would assist a young lady in carrying on a clandestine correspondence."
  • "June 25th, 2009 3: 54 pm ET the only thing that will convince Americans to change their addition is their pocket – I love the times when gallon was $5.00 at the pump"