pore vs soak up

pore is a noun but soak up is not a noun.

Word	Noun	Adjective	Verb	Adverb
pore	Yes	No	Yes	No
soak up	No	No	Yes	No

As verbs, soak up is a hyponym of pore; that is, soak up is a word with a more specific, narrower meaning than pore:

Other hyponyms of pore include absorb, engross, engulf, immerse, plunge, steep, recall, think, zoom in, hear, listen, take heed.

pore (noun)	soak up (noun)
any small opening in the skin or outer surface of an animal
a minute epidermal pore in a leaf or stem through which gases and water vapor can pass
any tiny hole admitting passage of a liquid (fluid or gas)

pore (verb)	soak up (verb)
direct one's attention on something	devote (oneself) fully to
	take in, also metaphorically