receding vs recession

receding and recession both are nouns.

Word	Noun	Adjective	Verb	Adverb
receding	Yes	Yes	No	No
recession	Yes	No	No	No

As nouns, receding and recession are synonyms defined as:

receding (noun)	recession (noun)
the act of becoming more distant	the act of becoming more distant
a slow or gradual disappearance	the act of ceding back
	the withdrawal of the clergy and choir from the chancel to the vestry at the end of a church service
	a small concavity
	the state of the economy declines; a widespread decline in the GDP and employment and trade lasting from six months to a year

receding (adjective)	recession (adjective)
(of a hairline e.g.) moving slowly back