blowup vs magnification

blowup and magnification both are nouns.

Word	Noun	Adjective	Verb	Adverb
blowup	Yes	No	No	No
magnification	Yes	No	No	No

As nouns, blowup and magnification are synonyms defined as:

Other synonyms of blowup include enlargement.

blowup (noun)	magnification (noun)
a photographic print that has been enlarged	the act of expanding something in apparent size
an unrestrained expression of emotion	a photographic print that has been enlarged
a violent release of energy caused by a chemical or nuclear reaction	making to seem more important than it really is
	the ratio of the size of an image to the size of the object