daily vs everyday

daily is a noun but everyday is not a noun.

Word	Noun	Adjective	Verb	Adverb
daily	Yes	Yes	No	Yes
everyday	No	Yes	No	No

As adjectives, daily and everyday are synonyms defined as:

Other synonyms of daily include casual.

daily (noun)	everyday (noun)
a newspaper that is published every day

daily (adjective)	everyday (adjective)
appropriate for ordinary or routine occasions	commonplace and ordinary
of or belonging to or occurring every day	appropriate for ordinary or routine occasions
	found in the ordinary course of events

daily (adverb)	everyday (adverb)
every day; without missing a day
gradually and progressively