increase vs addition

increase and addition both are nouns.

Word	Noun	Adjective	Verb	Adverb
increase	Yes	No	Yes	No
addition	Yes	No	No	No

As nouns, addition is a hyponym of increase; that is, addition is a word with a more specific, narrower meaning than increase:

As nouns, increase and addition are synonyms defined as:

Other synonyms of increase include gain.

increase (noun)	addition (noun)
the act of increasing something	the arithmetic operation of summing; calculating the sum of two or more numbers
the amount by which something increases	the act of adding one thing to another
a change resulting in an increase	a component that is added to something to improve it
a process of becoming larger or longer or more numerous or more important	a suburban area laid out in streets and lots for a future residential area
a quantity that is added	something added to what you already have
	a quantity that is added

increase (verb)	addition (verb)
become bigger or greater in amount
make bigger or more