Big shot and Co

Big shot noun - One of high position or importance within a group.

Co and big shot are semantically related In some cases you can use "Co" instead a noun phrase "Big shot".

Co noun - A hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition.

Big shot and co are semantically related in person topic. Sometimes you can use "Big shot" instead a noun "Co".