withdraw vs retreat

withdraw is not a noun while retreat is a noun.

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

As verbs, withdraw and retreat are synonyms defined as:

withdraw and retreat: make a retreat from an earlier commitment or activity

Other synonyms of withdraw include back away, back out, crawfish, crawfish out, pull back, pull in one's horns.

As verbs, withdraw and retreat are synonyms defined as:

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

As verbs, retreat is a hyponym of withdraw; that is, retreat is a word with a more specific, narrower meaning than withdraw:

Other hyponyms of withdraw include fall back, retrograde, back down, back off, back up.

withdraw (noun)	retreat (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

withdraw (verb)	retreat (verb)
keep away from others	make a retreat from an earlier commitment or activity
remove something concrete, as by lifting, pushing, or taking off, or remove something abstract	pull back or move away or backward
make a retreat from an earlier commitment or activity	move back
take back what one has said	move away, as for privacy
release from something that holds fast, connects, or entangles
lose interest
pull back or move away or backward
remove (a commodity) from (a supply source)
cause to be returned
break from a meeting or gathering
withdraw from active participation
retire gracefully