What does "strad" mean?

Apocopic form of Stradivarius (“violin”).

What is a synonym for "strad"?

Common synonyms include: amati, antique violin, bass, bow, bridge, cello.

/stɹæd/ noun, slang

noun, slang ·Moderate ·College level

Noun

1
Apocopic form of Stradivarius (“violin”). abbreviation, alt-of, apocopic, informal
"Members of world-famous string quartets past and present also performed on Strads."
2
a violin made by Antonio Stradivari or a member of his family wordnet

"Members of world-famous string quartets past and present also performed on Strads."