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ad·di·tion

addition

 
 
pronunciation:
dI shn
features:
Word Parts
part of speech: noun
definition 1: the act or process of adding.
The addition of cheese made the sandwich taste much better.
synonyms:
tallying
antonyms:
subtraction
similar words:
count
definition 2: the arithmetic operation of finding the total of two or more numbers.
Often the first example of addition that we learn is 1+1=2.
 
antonyms:
subtraction
similar words:
counting
definition 3: anything that is added to something else.
The addition to our school will give us a new art room and gym.This baby is an addition to our family.
synonyms:
extension
antonyms:
deduction
similar words:
annex, appendix, attachment, extra, increase
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