addition
Americannoun
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the act or process of adding or uniting.
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the process of uniting two or more numbers into one sum, represented by the symbol +.
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the result of adding.
- Synonyms:
- accession, increment, enlargement, increase
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something added.
- Synonyms:
- appendix, supplement, accession, increment, enlargement, increase
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a wing, room, etc., added to a building, or abutting land added to real estate already owned.
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Chemistry. a reaction in which two or more substances combine to form another compound.
idioms
noun
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the act, process, or result of adding
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a person or thing that is added or acquired
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a mathematical operation in which the sum of two numbers or quantities is calculated. Usually indicated by the symbol +
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a part added to a building or piece of land; annexe
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obsolete a title following a person's name
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(adverb) also; as well; besides
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(preposition) besides; as well as
Usage
What is a basic definition of addition? Addition is a mathematical operation in which two or more numbers are combined to equal a greater number. The word addition also refers to the act of adding. More generally, it refers to an increase or boost applied to something. Addition has a few other senses as a noun.Addition is one of math’s basic operations. Two or more numbers are united to result in a greater number, called a sum. The symbol used for addition is +, which is called a plus sign.Real-life examples: Here are some basic examples of addition: 2 + 2 = 4, 17 + 35 = 52, 143 + 64 = 207.Used in a sentence: I’m teaching the kids to use addition to figure out how much money they need to pay for lunch. An addition is something that has been joined or combined with something else to enhance it or provide more to it.Real-life examples: Recipes can be improved or made more flavorful by using additions such as spices. Accessories and decorations are used as additions to things like cars or clothing to make them look nicer or more stylish.Used in a sentence: Paintings and flowers make nice additions to any room. Relatedly, addition can refer to new rooms or wings that are attached to a building.Used in a sentence: The college is planning a new addition to the campus library. Addition is also used to refer to the act or an instance of adding to something or increasing it in some way.Used in a sentence: The roller coaster became much more popular after the addition of exciting music and amazing decorations.
Related Words
Addition, accessory, adjunct, attachment mean something joined onto or used with something else. Addition is the general word, carrying no implication of size, importance, or kind, but merely that of being joined to something previously existing: an addition to an income, to a building, to one's cares. An accessory is a subordinate addition to a more important thing, for the purpose of aiding, completing, ornamenting, etc.: accessories to a costume. An adjunct is a subordinate addition that aids or assists a main thing or person but is often separate: a second machine as an adjunct to the first. An attachment is an accessory part that may be easily connected and removed: a sewing machine attachment for pleating.
Other Word Forms
- preaddition noun
- readdition noun
Etymology
Origin of addition
First recorded in 1350–1400; Middle English addicio(u)n, from Latin additiōn-, stem of additiō, from addit(us) “added” (past participle of addere “to add”; add ) + -iō -ion
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Andrew previously worked at the Financial Times producing graphics and charts in addition to several other publications before joining the Journal.
In addition, much of that iron appears to come from a different form of meltwater than the kind produced directly by melting ice shelves.
From Science Daily
In addition to raising the price to $31 a share, Paramount increased its regulatory termination fee to $7 billion and accelerated the ticking fee to start after Sept. 30 rather than next year.
In addition, Netflix’s stock had also been pummeled — the company had lost a quarter of its value — since investors learned the company was making a Warner run.
From Los Angeles Times
In addition, they face an increase in income tax on rental income in 2027.
From BBC
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
