starvation vs starving

starvation and starving both are nouns.

Word	Noun	Adjective	Verb	Adverb
starvation	Yes	No	No	No
starving	Yes	Yes	No	No

As nouns, starvation and starving are synonyms defined as:

starvation and starving: the act of depriving of food or subjecting to famine

starvation (noun)	starving (noun)
the act of depriving of food or subjecting to famine	the act of depriving of food or subjecting to famine
a state of extreme hunger resulting from lack of essential nutrients over a prolonged period

starvation (adjective)	starving (adjective)
	suffering from lack of food