Synonyms of co


1. carbon monoxide, carbon monoxide gas, CO, monoxide

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

2. cobalt, Co, atomic number 27, metallic element, metal

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

3. conscientious objector, CO, dissenter, dissident, protester, objector, contestant

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

4. Colorado, Centennial State, CO

usage: a state in west central United States in the Rocky Mountains

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See also: co (Dictionary)