Big wheel and Co

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

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

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

Big wheel and co are semantically related in person who manages an organization topic. Sometimes you can use "Big wheel" instead a noun "Co".