Chief and Co

Chief noun - The main or greater part of something as distinguished from its subordinate parts.

Co and chief are semantically related In some cases you can use "Co" instead a noun "Chief".

Nearby Word: chiefly

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

Chief and co are semantically related in person topic. Sometimes you can use "Chief" instead a noun "Co", if it concerns topics such as person who manages an organization, leader of military or other organization.