co-
prefix
[ kəʊ ]
• (forming nouns) joint; mutual; common.
• "co-driver"
• (forming adjectives) jointly; mutually.
• "coequal"
• (forming verbs) together with another or others.
• "co-produce"
• of the complement of an angle.
• "cosine"
Origin:
from Latin, originally a form of com-.
Co
abbreviation
• company.
• "the Consett Iron Co"
• county.
• "Co Cork"
Co
symbol
• the chemical element cobalt.
CO
abbreviation
• Colorado (in official postal use).
• Colombia (international vehicle registration).
• Commanding Officer.
• conscientious objector.
c/o
abbreviation
• care of.
cobalt
noun
• the chemical element of atomic number 27, a hard silvery-white magnetic metal.
Origin:
late 17th century: from German Kobalt ‘imp, demon’ (because the presence of cobalt-bearing ore made it more difficult to extract silver, and miners believed that it was harmful to the silver ore with which it occurred).
com-
prefix
• with; together; jointly; altogether.
• "combine"
Origin:
from Latin cum ‘with’.
