1. Together, with, joint

1. (mail) to be delivered to (e.g. the address of someone who will then give the delivery to the intended recipient)
   - care of

1. A state in west central United States in the Rocky Mountains
   - Colorado, Centennial State 
2. One who refuses to serve in the armed forces on grounds of conscience
   - conscientious objector 
3. An odourless very poisonous gas that is a product of incomplete combustion of carbon
   - carbon monoxide, carbon monoxide gas

1. A hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition
   - cobalt, atomic number 27

Derived forms: COs, Cos

Type of: American state, contestant, dissenter, dissident, metal, metallic element, monoxide, objector, protester, protestor

Part of: America, cobaltite, smaltite, the States, U.S., U.S.A., United States, United States of America, US, USA

Encyclopedia: CO

• São Thomé e Principe
• São Thomé e Principe monetary unit
• São Tiago Island
• São Tomé
• incautiousness
• incendiarism
• incendiary
• incendiary bomb
• incense
• incense cedar
• incense tree
• incense wood
• incensed
• incentive
• incentive option
• incentive program
• incentive scheme
• incentive stock option
• incentivise
• incentivize
• inception
• inceptive
• incertain
• incertitude
• incessancy