regurgitation vs recollection

regurgitation and recollection both are nouns.

Word	Noun	Adjective	Verb	Adverb
regurgitation	Yes	No	No	No
recollection	Yes	No	No	No

As nouns, recollection is a hypernym of regurgitation; that is, recollection is a word with a broader meaning than regurgitation:

regurgitation: recall after rote memorization
recollection: the process of remembering (especially the process of recovering information by mental effort)

Other hypernyms of regurgitation include recall, reminiscence.

regurgitation (noun)	recollection (noun)
the reflex act of ejecting the contents of the stomach through the mouth	the ability to recall past occurrences
recall after rote memorization	the process of remembering (especially the process of recovering information by mental effort)
backflow of blood through a defective heart valve	something recalled to the mind