Co

state in the western United States

n. any military rank between second lieutenant and colonel (in the U.S. Army)

pref. together, as partners

one who refuses to serve in the military due to personal or religious beliefs

n. brittle silver-white metallic element used in a variety of alloys

CO can stand for:Carbon monoxide, molecular formulaCardiac output, the volume of blood being pumped by the heart per time unit, often specified as the volume pumped through a ventricle per minute. It is equal to the heart rate multiplied by the stroke volume.Central office, in telecommunications and telephonyCertificate of Occupancy, a document stating that a building was inspected and is safe to live in.Certifying OfficerChesapeake and Ohio RailwayChief OfficerChinese OrchestraCollaborative BrowsingCollection OfficerColombia, in various country codesColorado (United States postal abbreviations)CommandCommanding officer, militaryCommissioned Officer, militaryCommunications Officer Como, a city in Lombardia, ItalyCompanyCompliance OfficerComputer organizationConjure One, a Canadian music artistConquer Online, a MMORPG PC gameConscientious objector, militaryContinental Airlines, IATA airline designatorContracting Officer, Corrections OfficerCustodial Officer
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Cö is a digraph of the Latin alphabet. It is used as a letter of the Seri alphabet, where it represents a labialized velar stop (IPA: ). It is placed between C and E in alphabetical order.
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.co is the Internet country code top-level domain (ccTLD) for Colombia. It is administered by Los Andes University."co" is also frequently used as a second-level domain within other country-code domains, in which registrants (usually companies) may register second-level domains of the form .co.xx, where xx is the ccTLD. Israel (.co.il), United Kingdom (.co.uk), New Zealand (.co.nz), Japan (.co.jp), South Korea (.co.kr) and Cook Islands (.co.ck) are all examples. Some other country codes use "com" instead, such as Australia (.com.au), Mexico (.com.mx) and China (.com.cn); this includes .co itself, which uses .com.co.
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Noun
1. an odorless very poisonous gas that is a product of incomplete combustion of carbon
(synonym) carbon monoxide, carbon monoxide gas
(hypernym) monoxide
2. one who refuses to serve in the armed forces on grounds of conscience
(synonym) conscientious objector
(hypernym) dissenter, dissident, protester, objector, contestant
3. a state in west central United States in the Rocky Mountains
(synonym) Colorado, Centennial State
(hypernym) American state
(part-holonym) United States, United States of America, America, US, U.S., USA, U.S.A.
(part-meronym) Mesa Verde National Park

Noun
1. a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition
(synonym) cobalt, atomic number 27
(hypernym) metallic element, metal
(hyponym) cobalt 60
(substance-holonym) smaltite

CO, company, corporation, firm

partner, associate, colleague

v. coexist, exist at the same time; live together peacefully, exist side by side