addition
1 ENTRIES FOUND:
plural
additions
plural
additions
Britannica Dictionary definition of ADDITION
1
[noncount]
:
the act or process of joining something to something else
:
the act or process of adding something
— often + of
-
The soup was thickened by the addition of cream in the last stage of cooking.
-
The town welcomed the addition of three new computers to the library.
2
[noncount]
mathematics
:
the act or process of adding numbers
-
The children learned addition and subtraction.
3
[count]
:
something or someone more that is included
:
something or someone that is added
— usually + to
-
The museum's collection includes several new additions.
-
an addition to the family [=a new member of the family, such as a newborn baby]
-
The sculpture is the newest addition to the museum's collection.
4
[count]
US
:
a part of a building that is built after the original part has been completed
-
The addition expands the kitchen and adds a second bathroom.
in addition
:
as something more
— used for adding information to a statement
-
The city has the largest population in the country and in addition [=also, additionally] is a major shipping port.
-
Sandwiches were served, and several salads in addition.
in addition to
:
along with or together with (something or someone)
-
In addition to soup, several salads were served.
-
There were six people at the meeting in addition to me.
