The word "addition" refers to the act of putting two or more things together to create a larger whole. It can also mean increasing or joining something. Full definition
In addition of course it is a full featured phone offering an awesome camera with great features. (littletechgirl.com)
As a result of addition of new companies over last several weeks, total number went up to round figure of 75 wonderful companies in my portfolio. (race2retirement.com)
If you would like to read about any of these new additions in greater detail, you can find them here. (playstationinsider.com)