Addition (disambiguation)
Appearance
![](http://upload.wikimedia.org/wikipedia/commons/thumb/9/99/Wiktionary-logo-en-v2.svg/40px-Wiktionary-logo-en-v2.svg.png)
Look up addition in Wiktionary, the free dictionary.
Addition is the mathematical process of putting things together.
Addition may also refer to:
- Addition (logic), a simple logic argument form
- Addition reaction, a chemical reaction combining molecules
- "Addition", a song by No Devotion from Permanence
- A room or wing added onto a building after initial construction through renovation.