digestion vs learning

digestion and learning both are nouns.

Word	Noun	Adjective	Verb	Adverb
digestion	Yes	No	No	No
learning	Yes	No	No	No

As nouns, learning is a hypernym of digestion; that is, learning is a word with a broader meaning than digestion:

Other hypernyms of digestion include acquisition.

digestion (noun)	learning (noun)
learning and coming to understand ideas and information	the cognitive process of acquiring skill or knowledge
the organic process by which food is converted into substances that can be absorbed into the body	profound scholarly knowledge
the process of decomposing organic matter (as in sewage) by bacteria or by chemical action or heat