imbibing vs ingestion

imbibing and ingestion both are nouns.

Word	Noun	Adjective	Verb	Adverb
imbibing	Yes	No	No	No
ingestion	Yes	No	No	No

As nouns, ingestion is a hypernym of imbibing; that is, ingestion is a word with a broader meaning than imbibing:

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

Other hypernyms of imbibing include consumption, intake, uptake.

imbibing (noun)	ingestion (noun)
the act of consuming liquids	the process of taking food into the body through the mouth (as by eating)