Entry Word: addition

Function: noun

Meaning: 1 a smaller structure added to a main building <a new addition to the library providing space for an expanded video collection> — see annex
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> — see increase 1
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?> — see multiplication