inundation vs batch

inundation and batch both are nouns.

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

As nouns, batch is a hypernym of inundation; that is, batch is a word with a broader meaning than inundation:

inundation (noun)	batch (noun)
the rising of a body of water and its overflowing onto normally dry land	a collection of things or persons to be handled together
an overwhelming number or amount	all the loaves of bread baked at the same time
	(often followed by `of') a large number or amount or extent

inundation (verb)	batch (verb)
	batch together; assemble or process as a batch