What does addition mean?

Definitions for addition
əˈdɪʃ ənad·di·tion

Here are all the possible meanings and translations of the word addition.

Princeton's WordNet

  1. addition, add-on, improvernoun

    a component that is added to something to improve it

    "the addition of a bathroom was a major improvement"; "the addition of cinnamon improved the flavor"

  2. additionnoun

    the act of adding one thing to another

    "the addition of flowers created a pleasing effect"; "the addition of a leap day every four years"

  3. addition, increase, gainnoun

    a quantity that is added

    "there was an addition to property taxes this year"; "they recorded the cattle's gain in weight over a period of weeks"

  4. accession, additionnoun

    something added to what you already have

    "the librarian shelved the new accessions"; "he was a new addition to the staff"

  5. additionnoun

    a suburban area laid out in streets and lots for a future residential area

  6. summation, addition, plusnoun

    the arithmetic operation of summing; calculating the sum of two or more numbers

    "the summation of four and three gives seven"; "four plus three equals seven"


  1. additionnoun

    The act of adding anything.

    The addition of five more items to the agenda will make the meeting unbearably long.

  2. additionnoun

    Anything that is added.

  3. additionnoun

    The arithmetic operation of adding.

  4. Etymology: Sense of “what is added” dating from 14th Century ; from adition, from additionem.

Samuel Johnson's Dictionary

  1. Additionnoun

    Etymology: from add.

    The infinite distance between the Creator and the noblest of all creatures, can never be measured, nor exhausted by endless addition of finite degrees. Richard Bentley, Sermons.

    It will not be modestly done, if any of our own wisdom intrude or interpose, or be willing to make additions to what Christ and his Apostles have designed. Henry Hammond, Fundam.

    Some such resemblances, methinks, I find
    Of our last evening’s talk, in this thy dream,
    But with addition strange! John Milton, Paradise Lost, b. v.

    The abolishing of villanage, together with the custom permitted, among the nobles, of selling their lands, was a mighty addition to the power of the commons. Jonathan Swift, on the Dissensions in Athens and Rome.

    Only retain
    The name, and all th’ addition to a king;
    The sway, revenue, execution of th’ last,
    Beloved sons, be yours; which to confirm,
    This coronet part between you. William Shakespeare, King Lear.

    From this time,
    For what he did before Corioli, call him,
    With all th’ applause and clamour of the host,
    Caius Marcius Coriolanus. Bear th’ addition nobly ever. William Shakespeare, Coriolanus.

    There arose new disputes upon the persons named by the king, or rather against the additions and appellations of title, which were made to their names. Edward Hyde, b. viii.


  1. Addition

    Addition (usually signified by the plus symbol +) is one of the four basic operations of arithmetic, the other three being subtraction, multiplication and division. The addition of two whole numbers results in the total amount or sum of those values combined. The example in the adjacent picture shows a combination of three apples and two apples, making a total of five apples. This observation is equivalent to the mathematical expression "3 + 2 = 5" (i.e., "3 add 2 is equal to 5"). Besides counting items, addition can also be defined and executed without referring to concrete objects, using abstractions called numbers instead, such as integers, real numbers and complex numbers. Addition belongs to arithmetic, a branch of mathematics. In algebra, another area of mathematics, addition can also be performed on abstract objects such as vectors, matrices, subspaces and subgroups.Addition has several important properties. It is commutative, meaning that order does not matter, and it is associative, meaning that when one adds more than two numbers, the order in which addition is performed does not matter (see Summation). Repeated addition of 1 is the same as counting; addition of 0 does not change a number. Addition also obeys predictable rules concerning related operations such as subtraction and multiplication. Performing addition is one of the simplest numerical tasks. Addition of very small numbers is accessible to toddlers; the most basic task, 1 + 1, can be performed by infants as young as five months, and even some members of other animal species. In primary education, students are taught to add numbers in the decimal system, starting with single digits and progressively tackling more difficult problems. Mechanical aids range from the ancient abacus to the modern computer, where research on the most efficient implementations of addition continues to this day.

Webster Dictionary

  1. Additionnoun

    the act of adding two or more things together; -- opposed to subtraction or diminution

  2. Additionnoun

    anything added; increase; augmentation; as, a piazza is an addition to a building

  3. Additionnoun

    that part of arithmetic which treats of adding numbers

  4. Additionnoun

    a dot at the right side of a note as an indication that its sound is to be lengthened one half

  5. Additionnoun

    a title annexed to a man's name, to identify him more precisely; as, John Doe, Esq.; Richard Roe, Gent.; Robert Dale, Mason; Thomas Way, of New York; a mark of distinction; a title

  6. Additionnoun

    something added to a coat of arms, as a mark of honor; -- opposed to abatement


  1. Addition

    Addition is a mathematical operation that represents the total amount of objects together in a collection. It is signified by the plus sign. For example, in the picture on the right, there are 3 + 2 apples—meaning three apples and two apples together, which is a total of 5 apples. Therefore, 3 + 2 = 5. Besides counting fruits, addition can also represent combining other physical and abstract quantities using different kinds of objects: negative numbers, fractions, irrational numbers, vectors, decimals, functions, matrices and more. Addition follows several important patterns. It is commutative, meaning that order does not matter, and it is associative, meaning that when one adds more than two numbers, order in which addition is performed does not matter. Repeated addition of 1 is the same as counting; addition of 0 does not change a number. Addition also obeys predictable rules concerning related operations such as subtraction and multiplication. All of these rules can be proven, starting with the addition of natural numbers and generalizing up through the real numbers and beyond. General binary operations that continue these patterns are studied in abstract algebra.

Suggested Resources

  1. addition

    The addition symbol -- In this Symbols.com article you will learn about the meaning of the addition symbol and its characteristic.

British National Corpus

  1. Spoken Corpus Frequency

    Rank popularity for the word 'addition' in Spoken Corpus Frequency: #4403

  2. Nouns Frequency

    Rank popularity for the word 'addition' in Nouns Frequency: #1452

How to pronounce addition?

How to say addition in sign language?


  1. Chaldean Numerology

    The numerical value of addition in Chaldean Numerology is: 9

  2. Pythagorean Numerology

    The numerical value of addition in Pythagorean Numerology is: 4

Examples of addition in a Sentence

  1. President Barack Obama:

    We have agreed that neither the U.S. or the Chinese government will conduct or knowingly support cyber-enabled theft of intellectual property, including trade secrets or other confidential business information for commercial advantage. In addition, we'll work together and with other nations to promote international rules of the road for appropriate conduct in cyberspace.

  2. The HHS:

    Behavioral health is a priority for the Department of Health and Human Services. The COVID-19 pandemic has made clear the need to invest resources in our nation's mental health and address the inequities that still exist around behavioral health care. That's why we are making this historic investment in mental health and substance use services, in addition, this national problem calls for Department-wide coordination to address the issue. That's why I am convening the Behavioral Health Coordinating Council to work across HHS to facilitate collaboration and strategic planning as we implement our behavioral health agenda.

  3. Miguel Southwell:

    It can't be a one size fits all, in addition to the background checks as an employee, there's an enormous amount of training that goes on. There's an enormous amount of retraining that goes on as well.

  4. Kevin Cramer:

    The distinction's pretty clear. I know Stephen Moore.Moore. I know Stephen Moore.Moore philosophy, I know Stephen Moore.Moore economic positions, I know Stephen Moore.Moore credentials, I know Stephen Moore.Moore heart, and I think Stephen Moore.Moore'd be a good addition to the Fed. The issues that have been raised about Stephen Moore.Moore, none of them disqualify Stephen Moore.Moore.

  5. Hannah Karp:

    His fans are likely streaming him more because they can't hear him on the radio anymore, some fans may be streaming him more in addition to show their support for him, which is something that super fans and fan armies often do.

Popularity rank by frequency of use


Translations for addition

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    relating to a technique that does not involve puncturing the skin or entering a body cavity
    • A. dangerous
    • B. opaque
    • C. noninvasive
    • D. witless

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