pike vs autostrada

pike and autostrada both are nouns.

Word	Noun	Adjective	Verb	Adverb
pike	Yes	No	No	No
autostrada	Yes	No	No	No

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

Other hyponyms of pike include autobahn, toll road, turnpike.

pike (noun)	autostrada (noun)
any of several elongate long-snouted freshwater game and food fishes widely distributed in cooler parts of the Northern Hemisphere	an expressway in an Italian-speaking country
medieval weapon consisting of a spearhead attached to a long pole or pikestaff; superseded by the bayonet
a broad highway designed for high-speed traffic
a sharp point (as on the end of a spear)
highly valued northern freshwater fish with lean flesh