rationing vs ration

rationing and ration both are nouns.

Word	Noun	Adjective	Verb	Adverb
rationing	Yes	No	No	No
ration	Yes	No	Yes	No

rationing (noun)	ration (noun)
the act of rationing	the food allowance for one day (especially for service personnel)
	a fixed portion that is allotted (especially in times of scarcity)

rationing (verb)	ration (verb)
	distribute in rations, as in the army
	restrict the consumption of a relatively scarce commodity, as during war