picture taking vs block out

picture taking is a noun but block out is not a noun.

Word	Noun	Adjective	Verb	Adverb
picture taking	Yes	No	No	No
block out	No	No	Yes	No

picture taking (noun)	block out (noun)
the act of taking and printing photographs

picture taking (verb)	block out (verb)
	plan where and when songs should be inserted into a theatrical production, or plan a theatrical production in general
	indicate roughly
	shield from light
	prevent from entering