retreat vs recede

retreat is a noun but recede is not a noun.

Word	Noun	Adjective	Verb	Adverb
retreat	Yes	No	Yes	No
recede	No	No	Yes	No

As verbs, retreat and recede are synonyms defined as:

Other synonyms of retreat include draw back, move back, pull away, pull back, retire, withdraw.

As verbs, recede is a hypernym of retreat; that is, recede is a word with a broader meaning than retreat:

Other hypernyms of retreat include draw back, move back, pull away, pull back, retire, retreat, withdraw.

retreat (noun)	recede (noun)
(military) withdrawal of troops to a more favorable position to escape the enemy's superior forces or after a defeat
withdrawal for prayer and study and meditation
the act of withdrawing or going backward (especially to escape something hazardous or unpleasant)
an area where you can be alone
(military) a bugle call signaling the lowering of the flag at sunset
(military) a signal to begin a withdrawal from a dangerous position
a place of privacy; a place affording peace and quiet

retreat (verb)	recede (verb)
make a retreat from an earlier commitment or activity	become faint or more distant
pull back or move away or backward	retreat
move back	pull back or move away or backward
move away, as for privacy