antiquity vs stele

antiquity and stele both are nouns.

Word	Noun	Adjective	Verb	Adverb
antiquity	Yes	No	No	No
stele	Yes	No	No	No

As nouns, stele is a hyponym of antiquity; that is, stele is a word with a more specific, narrower meaning than antiquity:

Other hyponyms of antiquity include antique, relic, Roman building, stela.

antiquity (noun)	stele (noun)
an artifact surviving from the past	an ancient upright stone slab bearing markings
extreme oldness	the usually cylindrical central vascular portion of the axis of a vascular plant
the historic period preceding the Middle Ages in Europe