Co
WordNet
noun
(1) A state in west central United States in the Rocky Mountains
(2) One who refuses to serve in the armed forces on grounds of conscience
(3) A hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition
(4) An odorless very poisonous gas that is a product of incomplete combustion of carbon
WiktionaryText
Proper noun
- of Chinese origin.