Dictionary.net

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"

a component that is added to something to improve it; "the addition of a bathroom was a major improvement"; "the addition of cinammon improved the flavor"

a suburban area laid out in streets and lots for a future residential area

something added to what you already have; "the librarian shelved the new accessions"; "he was a new addition to the staff"

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"

a component that is added to something to improve it; "the addition of a bathroom was a major improvement"; "the addition of cinammon improved the flavor"

a suburban area laid out in streets and lots for a future residential area

Anything added; increase; augmentation; as, a piazza is an addition to a building.

That part of arithmetic which treats of adding numbers.

A dot at the right side of a note as an indication that its sound is to be lengthened one half.

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 act of adding two or more things together; - opposed to subtraction or diminution.

Anything added; increase; augmentation; as, a piazza is an addition to a building.

That part of arithmetic which treats of adding numbers.

A dot at the right side of a note as an indication that its sound is to be lengthened one half.

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 act of adding two or more things together; - opposed to subtraction or diminution.

The act, process, or result of summing up numbers; the thing joined; the uniting of two or more numbers in one sum; an increase.

The act of adding: the thing added: the rule in arithmetic for adding numbers together: title, honor.

Act of adding; something added; sum.

The act of adding, or that which is added; an increase; accession.

The act or process of adding; anything added; an accession; the uniting of two or more numbers into one sum. The branch of arithmetic which treats of addings. The title annexed to a man's name, to show his rank, occupation, or place of residence. A dot at the right side of a note, to lengthen its sound one-half.

An increase; uniting two or more numbers into one sum; something put to.

In chemistry, the formation of a new molecule by the direct union of two or more atoms.

n. The act of adding two or more things together ;—any thing added ; increase ;— the branch of arithmetic which treats of adding numbers.

The act of adding one thing to another; the thing added; in arithmetick, addition is the reduction of two or more numbers of like kind, together into one sum or total.