Addition

noun

1. The act of adding anything.

   "The addition of five more items to the agenda will make the meeting unbearably long."

2. Anything that is added.
3. The arithmetic operation of adding.
4. A dot at the right side of a note as an indication that its sound is to be lengthened one half.
5. A title annexed to a person's name to identify him or her more precisely, as in "John Doe, Esq.", "Robert Dale, Mason", "Thomas Way, of New York".