Definition

1. Noun:
   • The arithmetic operation of summing; calculating the sum of two or more numbers: The process of combining numbers to find their total.
   • Something added to what you already have: An item or person that joins or supplements something existing.
   • A quantity that is added: An increase in amount or number.
   • The act of adding one thing to another: The action or process of joining something to something else.
   • A component that is added to something to improve it: An extra part or feature included to enhance the original.

Usage and Examples

• Arithmetic Operation:
  • Learning addition is a fundamental math skill.
  • The addition of 5 and 7 is 12.
• Something Added:
  • The new library wing is a wonderful addition to the campus.
  • She will be a great addition to our team.
• A Quantity Added:
  • There was a small addition to the bill for service.
  • The recipe calls for the addition of two eggs.
• The Act of Adding:
  • The addition of salt enhances the flavor.
  • The document is complete and requires no further addition.
• An Improving Component:
  • The house's most valuable addition is the solar panels.
  • This software addition provides extra security.

Advanced Usage

• "In addition": Used to introduce an extra piece of information.
  • The hotel has a pool. In addition, it offers a free breakfast.
• "In addition to": As well as; besides.
  • In addition to French, she speaks Italian.

Variants and Related Words

• Add (verb): To join something to something else so as to increase the size, number, or amount.
  • Add the numbers together.
• Additional (adjective): Added, extra, or supplementary.
  • There will be an additional charge.
• Additive (noun): A substance added to something in small quantities to improve or preserve it.
  • This food contains no artificial additives.

Synonyms

• Inclusion: The action or state of including or being included within a group or structure.
• Increase: A rise in the size, amount, or degree of something.
• Appendage: A thing that is added or attached to something larger or more important.
• Supplement: Something that completes or enhances something else when added to it.

Idioms and Phrases

• "An afterthought addition": Something added as a secondary consideration, not part of the original plan.
  • The garage was an afterthought addition to the house.

Noun

1. 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
2. a suburban area laid out in streets and lots for a future residential area
3. something added to what you already have
   • the librarian shelved the new accessions
   • he was a new addition to the staff
4. 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
5. 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
6. 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