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co

 
Noun co has 4 senses
  1. carbon monoxide, carbon monoxide gas, CO - an odorless very poisonous gas that is a product of incomplete combustion of carbon
    --1 is a kind of monoxide
  2. cobalt, Co, atomic number 27 - a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition
    --2 is a kind of metallic element, metal
    --2 is a substance of smaltite; cobaltite
    --2 has particulars: cobalt 60
  3. conscientious objector, CO - one who refuses to serve in the armed forces on grounds of conscience
    --3 is a kind of dissenter, dissident, protester, objector, contestant
  4. Colorado, Centennial State, CO - a state in west central United States in the Rocky Mountains
    --4 is a kind of American state
    --4 is a part of
     United States, United States of America, America, US, U.S., USA, U.S.A.
    --4 has parts:
     Mesa Verde National Park; Rocky Mountain National Park; Boulder; Colorado Springs; Denver, Mile-High City, capital of Colorado; Pueblo; Arkansas, Arkansas River; Colorado, Colorado River; Colorado Plateau; North Platte, North Platte River; Pike's Peak; Republican, Republican River; San Juan Mountains; Sherman, Mount Sherman; South Platte, South Platte River
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