Addition — Meaning, Definition & Synonyms

noun /ə-ˈdi-shən/ ad·di·tion

Meaning & Definition of Addition

Addition (noun)

  1. a part added (as to a building or residential section)
  2. anything or anyone added, increase
  3. the act or process of adding; especially, the operation of combining numbers so as to obtain an equivalent simple quantity

Addition (noun) — Senses, Synonyms & Antonyms

  1. a smaller structure added to a main building

    "a new addition to the library providing space for an expanded video collection"

    similar: annex, extension, penthouse
    related: arm, ell, wing

  2. something added (as by growth)

    "the cache of old stamps I found in the discarded desk was a huge addition to my stamp collection"

    similar: accretion, accrual, addendum, augmentation, boost, expansion, gain, increase, increment, more, plus, proliferation, raise, rise, step-up, supplement, uptick
    related: accumulation, assemblage, collection, gathering, complement, accession, appendix, continuation, extension, uptrend, upturn, jump, run-up, spike
    opposite: abatement, decline, decrease, decrement, depletion, diminishment, diminution, drop-off, fall, falloff, lessening, loss, lowering, reduction, shrinkage, step-down
    near: deduction, subtraction

  3. the act or process of becoming greater in number

    "how do you account for the addition of more paint stains on your shirt after you put on a smock?"

    similar: accumulating, accumulation, increase, multiplication, mushrooming, proliferation
    related: doubling, quadrupling, tripling, creep, growth, rise, spread, enlargement, escalation, expansion, amplification, distension, inflation, accretion, accrual, augmentation, cumulation, extension, lengthening, boost, gain, hike, increment
    opposite: decrease
    near: abatement, compressing, compression, condensation, condensing, constricting, constriction, contracting, contraction, diminishing, diminishment, diminution, drop, drop-off, fall, falloff, lessening, lowering, reduction, shrinkage, shrinking, retrenching, retrenchment, shortening

Related Entry: In addition to (phrase)

In addition to is a different word from Addition. The synonyms below are for in addition to, not for addition.

  1. in addition to what has been said

    "In addition to our burgers, everyone ordered fries and milkshakes."

    similar: additionally, again, also, besides, either, further, furthermore, likewise, more, moreover, then, too, withal, yet, as well, for good measure, into the bargain, on top of, to boot, what's more

Synonyms, Thesaurus & Another Word for Addition

The most common words with a similar meaning to Addition:

annex, extension, penthouse, accretion, accrual, addendum, augmentation, boost, expansion, gain, increase, increment, more, plus, proliferation, raise, rise, step-up, supplement, uptick, accumulating, accumulation, multiplication, mushrooming

Antonyms & Opposite Words for Addition

Words with the opposite meaning of Addition:

abatement, decline, decrease, decrement, depletion, diminishment, diminution, drop-off, fall, falloff, lessening, loss, lowering, reduction, shrinkage, step-down

Related Words for Addition

arm, ell, wing, assemblage, collection, gathering, complement, accession, appendix, continuation, uptrend, upturn, jump, run-up, spike, doubling, quadrupling, tripling, creep, growth, spread, enlargement, escalation, amplification, distension, inflation, cumulation, lengthening, hike

Near Antonyms of Addition

deduction, subtraction, compressing, compression, condensation, condensing, constricting, constriction, contracting, contraction, diminishing, drop, shrinking, retrenching, retrenchment, shortening

Origin & Etymology of Addition

Middle English addicioun, borrowed from Anglo-French addicion, borrowed from Latin additiōn-, additiō, from addi-, variant stem of addere "to add" + -tiōn-, -tiō, suffix of action nouns

First known use: 14th century

Words & Phrases Containing Addition

in addition, in addition to

Frequently Asked Questions about Addition

What does "Addition" mean?

"Addition" means a part added (as to a building or residential section). As a noun, it is defined as: a part added (as to a building or residential section). It has 3 distinct senses.

What is another word for "Addition"?

Other words for "Addition" include annex, extension, penthouse, accretion, accrual, addendum, augmentation and boost. The best synonym depends on which meaning of "Addition" you intend.

What are different ways to say "Addition"?

There are 53 words and phrases with a similar meaning to "Addition". Common alternatives include annex, extension, penthouse, accretion, accrual, addendum, augmentation, boost, expansion and gain.

What is the opposite of "Addition"?

Antonyms of "Addition" include abatement, decline, decrease, decrement, depletion, diminishment, diminution and drop-off. Near antonyms include deduction, subtraction, compressing and compression.

How do you use "Addition" in a sentence?

Examples of "Addition" in a sentence: "a new addition to the library providing space for an expanded video collection"; "the cache of old stamps I found in the discarded desk was a huge addition to my stamp collection"; "how do you account for the addition of more paint stains on your shirt after you put on a smock?".

Is "Addition" a noun, verb, or adjective?

"Addition" is a noun.

How do you pronounce "Addition"?

"Addition" is pronounced /ə-ˈdi-shən/ and divided into syllables as ad·di·tion.

What is the origin of the word "Addition"?

"Addition" comes from Middle English addicioun, borrowed from Anglo-French addicion, borrowed from Latin additiōn-, additiō, from addi-, variant stem of addere "to add" + -tiōn-, -tiō, suffix of action nouns. First known use: 14th century.