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See also: ADD, add., and AD&D




Latin addere, from ad + dare (to give, put). Compare date, do.


  • IPA(key): /æd/
  • (file)
  • Rhymes: -æd
  • Homophone: ad


add (third-person singular simple present adds, present participle adding, simple past and past participle added)

  1. (transitive) To join or unite (e.g. one thing to another, or as several particulars) so as to increase the number, augment the quantity, or enlarge the magnitude, or so as to form into one aggregate.
  2. To sum up; to put together mentally.
    • 1689, John Locke, An Essay Concerning Human Understanding
      [] as easily as he can add together the ideas of two days or two years.
    to add numbers
  3. (transitive) To combine elements of (something) into one quantity.
    to add a column of numbers
  4. (transitive) To give by way of increased possession (to someone); to bestow (on).
  5. (transitive) To append (e,g, a statement); to say further information.
    • 1855, Thomas Babington Macaulay, The History of England from the Accession of James the Second, volume 3, page 37 [1]:
      He added that he would willingly consent to the entire abolition of the tax
    • 1900, L. Frank Baum, The Wonderful Wizard of Oz Chapter 23
      "Bless your dear heart," she said, "I am sure I can tell you of a way to get back to Kansas." Then she added, "But, if I do, you must give me the Golden Cap."
  6. (intransitive) To make an addition; to augment; to increase.
    • 1611, King James Version, 1 Kings 12:14:
      I will add to your yoke
    • 2013 June 29, “A punch in the gut”, in The Economist, volume 407, number 8842, page 72-3:
      Mostly, the microbiome is beneficial. [] Research over the past few years, however, has implicated it in diseases from atherosclerosis to asthma to autism. Dr Yoshimoto and his colleagues would like to add liver cancer to that list.
    It adds to our anxiety.
  7. (intransitive, mathematics) To perform the arithmetical operation of addition.
    He adds rapidly.

Usage notesEdit

  • We add by bringing things together so as to form a whole.
  • We join by putting one thing to another in close or continuous connection.
  • We annex by attaching some adjunct to a larger body.
  • We unite by bringing things together so that their parts adhere or intermingle.
  • Things coalesce by coming together or mingling so as to form one organization.
  • To add quantities; to join houses; to annex territory; to unite kingdoms; to make parties coalesce



Derived termsEdit

Related termsEdit


The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Wiktionary:Entry layout#Translations.


add (plural adds)

  1. (computer science) An act or instance of adding.
  2. (video games) An additional enemy that joined the fight after the primary target.
    After engaging the boss for one minute, two adds will arrive from the back and must be dealt with.




ad +‎ -d


  • IPA(key): [ˈɒdː]
  • Hyphenation: add



  1. second-person singular subjunctive present definite of ad




  1. (Internet slang, uninflected) to add in certain internet services
    1. to friend (to add as a friend in a social network)
    2. to add (to add as a contact in an instant messenger service)

Usage notesEdit

A rare occurrence in Portuguese, this verb is not inflected and will be in its infinitive form regardless of person or tense.


For quotations of use of this term, see Citations:add.




add (third-person singular present adds, present participle addin, past addit, past participle addit)

  1. to add