co

Noun

• a state in west central United States in the Rocky Mountains

• one who refuses to serve in the armed forces on grounds of conscience

• a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition

• an odorless very poisonous gas that is a product of incomplete combustion of carbon

Related words

• Synonyms: 
  Colorado , Centennial State , CO , conscientious objector , cobalt , Co , atomic number 27 , carbon monoxide , carbon monoxide gas