obliterate vs obliteration

obliterate is not a noun while obliteration is a noun.

Word	Noun	Adjective	Verb	Adverb
obliterate	No	Yes	Yes	No
obliteration	Yes	No	No	No

obliterate (noun)	obliteration (noun)
	destruction by annihilating something
	the complete destruction of every trace of something

obliterate (adjective)	obliteration (adjective)
reduced to nothingness

obliterate (verb)	obliteration (verb)
remove completely from recognition or memory
make undecipherable or imperceptible by obscuring or concealing
mark for deletion, rub off, or erase
do away with completely, without leaving a trace