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  1. CO Definition & Meaning - Merriam-Webster

    What does the abbreviation CO stand for? Meaning: company. How to use co in a sentence.

  2. Difference Between .com, .co, .net, .org, & .us Domain Names

    Learn what the difference is between .com, .net, .org, .co, and .us domain types and what makes them so popular. Discover which one to choose for your business.

  3. CO - Wikipedia

    Look up co, -co, c/o, care of, or co- in Wiktionary, the free dictionary.

  4. Carbon Monoxide Fact Sheet | CPSC.gov

    What is carbon monoxide (CO) and how is it produced? Carbon monoxide (CO) is a deadly, colorless, odorless, poisonous gas. It is produced by the incomplete burning of various fuels, including coal, …

  5. CO Definition & Meaning | Dictionary.com

    The prefix co- now productively forms new words from bases beginning with any sound (co-conspirator; co-manage; coseismic ), sometimes with the derived sense “auxiliary, subsidiary” (coenzyme; copilot …

  6. CO. definition in American English | Collins English Dictionary

    Definition of 'Co.' Co. Co. is used as an abbreviation for company when it is part of the name of an organization.

  7. CO - What does CO stand for? The Free Dictionary

    Looking for online definition of CO or what CO stands for? CO is listed in the World's most authoritative dictionary of abbreviations and acronyms.

  8. CO- | definition in the Cambridge English Dictionary

    CO- meaning: 1. together; with: 2. abbreviation for company (= business): 3. written abbreviation for county…. Learn more.

  9. CO - Definition by AcronymFinder

    What does CO stand for? CO abbreviation. Define CO at AcronymFinder.com.

  10. Carbon Monoxide Poisoning Basics | Carbon Monoxide Poisoning | CDC

    Jan 12, 2026 · Carbon monoxide (CO) is an odorless, colorless gas that can cause sudden illness and death if inhaled. Find quick facts about CO poisoning and what can be done to prevent it.