Addition

1. n. Something added to a coat of arms, as a mark of honor; — opposed to abatement.
2. n. The act of adding two or more things together; — opposed to subtraction or diminution.
3. n. Anything added; increase; augmentation; as, a piazza is an addition to a building.
4. n. That part of arithmetic which treats of adding numbers.
5. n. A dot at the right side of a note as an indication that its sound is to be lengthened one half.
6. n. A title annexed to a man’s name, to identify him more precisely; as, John Doe, Esq.; Richard Roe, Gent.; Robert Dale, Mason; Thomas Way, of New York; a mark of distinction; a title.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.