blowup vs gush

blowup and gush both are nouns.

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

As nouns, blowup and gush are synonyms defined as:

Other synonyms of blowup include ebullition, effusion, outburst.

blowup (noun)	gush (noun)
a photographic print that has been enlarged	an unrestrained expression of emotion
an unrestrained expression of emotion	a sudden rapid flow (as of water)
a violent release of energy caused by a chemical or nuclear reaction

blowup (verb)	gush (verb)
	praise enthusiastically
	issue in a jet; come out in a jet; stream or spring forth
	gush forth in a sudden stream or jet