blow up vs picture taking

blow up is not a noun while picture taking is a noun.

Word	Noun	Adjective	Verb	Adverb
blow up	No	No	Yes	No
picture taking	Yes	No	No	No

blow up (noun)	picture taking (noun)
	the act of taking and printing photographs

blow up (verb)	picture taking (verb)
make large
exaggerate or make bigger
to swell or cause to enlarge
cause to burst with a violent release of energy
fill with gas or air
burst and release energy as through a violent chemical or physical reaction
add details to
get very angry and fly into a rage