futurity vs tomorrow

futurity and tomorrow both are nouns.

Word	Noun	Adjective	Verb	Adverb
futurity	Yes	No	No	No
tomorrow	Yes	No	No	Yes

As nouns, tomorrow is a hyponym of futurity; that is, tomorrow is a word with a more specific, narrower meaning than futurity:

Other hyponyms of futurity include kingdom come, by-and-by, offing, manana.

futurity (noun)	tomorrow (noun)
the quality of being in or of the future	the near future
the time yet to come	the day after today

futurity (adverb)	tomorrow (adverb)
	the next day, the day after, following the present day