pore vs immerse

pore is a noun but immerse is not a noun.

Word	Noun	Adjective	Verb	Adverb
pore	Yes	No	Yes	No
immerse	No	No	Yes	No

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

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

pore (noun)	immerse (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)	immerse (verb)
direct one's attention on something	devote (oneself) fully to
	cause to be immersed
	thrust or throw into
	enclose or envelop completely, as if by swallowing