inundation vs deluge

inundation and deluge both are nouns.

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

As nouns, inundation and deluge are synonyms defined as:

inundation and deluge: the rising of a body of water and its overflowing onto normally dry land

Other synonyms of inundation include alluvion, flood.

As nouns, inundation and deluge are synonyms defined as:

Other synonyms of inundation include flood, torrent.

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

inundation (verb)	deluge (verb)
	fill or cover completely, usually with water
	charge someone with too many tasks
	fill quickly beyond capacity; as with a liquid