recollection vs reminiscence

recollection and reminiscence both are nouns.

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

As nouns, recollection and reminiscence are synonyms defined as:

recollection and reminiscence: the process of remembering (especially the process of recovering information by mental effort)

Other synonyms of recollection include recall.

recollection (noun)	reminiscence (noun)
the ability to recall past occurrences	the process of remembering (especially the process of recovering information by mental effort)
the process of remembering (especially the process of recovering information by mental effort)	a mental impression retained and recalled from the past
something recalled to the mind