consumption vs drinking

consumption and drinking both are nouns.

Word	Noun	Adjective	Verb	Adverb
consumption	Yes	No	No	No
drinking	Yes	No	No	No

As nouns, drinking is a hyponym of consumption; that is, drinking is a word with a more specific, narrower meaning than consumption:

consumption: the process of taking food into the body through the mouth (as by eating)
drinking: the act of consuming liquids

Other hyponyms of consumption include eating, feeding, deglutition, drink, swallow, suck, sucking, suction, imbibing, imbibition.

consumption (noun)	drinking (noun)
the act of consuming something	the act of consuming liquids
the process of taking food into the body through the mouth (as by eating)	the act of drinking alcoholic beverages to excess
(economics) the utilization of economic goods to satisfy needs or in manufacturing
involving the lungs with progressive wasting of the body