Strad vs violin

Strad and violin both are nouns.

Word	Noun	Adjective	Verb	Adverb
Strad	Yes	No	No	No
violin	Yes	No	No	No

As nouns, violin is a hypernym of Strad; that is, violin is a word with a broader meaning than Strad:

Strad: a violin made by Antonio Stradivari or a member of his family
violin: bowed stringed instrument that is the highest member of the violin family; this instrument has four strings and a hollow body and an unfretted fingerboard and is played with a bow

Other hypernyms of Strad include fiddle.

Strad (noun)	violin (noun)
a violin made by Antonio Stradivari or a member of his family	bowed stringed instrument that is the highest member of the violin family; this instrument has four strings and a hollow body and an unfretted fingerboard and is played with a bow