overwhelm vs deluge

overwhelm is not a noun while deluge is a noun.

Word	Noun	Adjective	Verb	Adverb
overwhelm	No	No	Yes	No
deluge	Yes	No	Yes	No

As verbs, overwhelm and deluge are synonyms defined as:

Other synonyms of overwhelm include flood out.

overwhelm (noun)	deluge (noun)
	a heavy rain
	the rising of a body of water and its overflowing onto normally dry land
	an overwhelming number or amount

overwhelm (verb)	deluge (verb)
charge someone with too many tasks	fill or cover completely, usually with water
overcome by superior force	charge someone with too many tasks
cover completely or make imperceptible	fill quickly beyond capacity; as with a liquid
overcome, as with emotions or perceptual stimuli