naumachia vs spectacle

naumachia and spectacle both are nouns.

Word	Noun	Adjective	Verb	Adverb
naumachia	Yes	No	No	No
spectacle	Yes	No	No	No

As nouns, spectacle is a hypernym of naumachia; that is, spectacle is a word with a broader meaning than naumachia:

naumachia: a naval spectacle; a mock sea battle put on by the ancient Romans
spectacle: an elaborate and remarkable display on a lavish scale

naumachia (noun)	spectacle (noun)
a naval spectacle; a mock sea battle put on by the ancient Romans	a blunder that makes you look ridiculous; used in the phrase `make a spectacle of' yourself
	an elaborate and remarkable display on a lavish scale
	something or someone seen (especially a notable or unusual sight)