Co and Exec

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

Exec and co are semantically related. in person who manages an organization topic. In some cases you can use "Exec" instead a noun "Co", when it comes to topics like leader of military or other organization.

Exec noun - A person who manages or directs something.

Co and exec are semantically related. Sometimes you can use "Co" instead a noun "Exec".