18-letter words containing o, e, c
- clothing allowance — an amount of money to compensate for the purchase of clothes for work, school, etc
- coals to newcastle — If someone is taking coals to Newcastle, they are trying to give or sell someone something that they already have a lot of.
- coast rhododendron — a rhododendron, Rhododendron macrophyllum, of western North America, having large clusters of rose-purple flowers spotted with brown: the state flower of Washington.
- coast-guard cutter — a cutter used by the U.S. Coast Guard.
- cobalt violet deep — a medium to strong purple color.
- cock-a-leekie soup — a soup made from a fowl boiled with leeks
- coffee-table music — unadventurous music
- cognitive ethology — a branch of ethology concerned with the influence of conscious awareness and intention on the behaviour of an animal
- coiled tubing unit — A coiled tubing unit is all of the equipment needed to carry out coiled tubing drilling.
- coitus interruptus — the deliberate withdrawal of the penis from the vagina before ejaculation
- collagen injection — an injection of collagen into the lip in order to give it a fuller appearance
- collection charges — the charges levied to cover expenses for the collection of debt
- college of justice — the official name for the Scottish Court of Session; the supreme court of Scotland
- collision coverage — Collision coverage is insurance cover for vehicle accidents.
- collision diameter — the distance between the centers of two colliding molecules when at their closest point of approach.
- color transparency — a positive color image photographically produced on transparent film or glass and viewed by transmitted light, usually by projection.
- colorado red cedar — Rocky Mountain juniper.
- colossus of rhodes — a giant bronze statue of Apollo built on Rhodes in about 292–280 bc; destroyed by an earthquake in 225 bc; one of the Seven Wonders of the World
- colour commentator — a sports celebrity who works as part of a commentary team
- colour temperature — the temperature of a black-body radiator at which it would emit radiation of the same chromaticity as the light under consideration
- comb-footed spider — any of numerous spiders constituting the family Theridiidae, having a comblike row of bristles on the tarsi of the hind legs.
- combination square — an adjustable device for carpenters, used as a try square, miter square, level, etc.
- combined operation — a military operation carried out jointly by allied forces
- combustion chamber — an enclosed space in which combustion takes place, such as the space above the piston in the cylinder head of an internal-combustion engine or the chambers in a gas turbine or rocket engine in which fuel and oxidant burn
- combustion furnace — a furnace used in the laboratory to carry out elemental analysis of organic compounds
- come back to earth — to return to reality from a fantasy or daydream
- come down the pike — When something comes down the pike, it happens or occurs.
- come home to roost — If bad or wrong things that someone has done in the past have come home to roost, or if their chickens have come home to roost, they are now experiencing the unpleasant effects of these actions.
- come into the open — to become evident or public
- come someone's way — to come within someone's scope or range; come to someone
- come the raw prawn — to attempt deception
- come to grips with — If you come to grips with a problem, you consider it seriously, and start taking action to deal with it.
- come to light with — to find or produce
- come to terms with — If you come to terms with something difficult or unpleasant, you learn to accept and deal with it.
- commander in chief — Also, Commander in Chief. the supreme commander of the armed forces of a nation or, sometimes, of several allied nations: The president is the Commander in Chief of the U.S. Army, Navy, and Air Force.
- commander-in-chief — A commander-in-chief is a senior officer who is in charge of all the forces in a particular area.
- commanding officer — A commanding officer is an officer who is in charge of a military unit.
- commando operation — a major operation for treatment of cancer of the head and neck, involving removal of many facial structures and subsequent surgical reconstruction
- comme ci, comme ca — so-so
- commedia dell'arte — a form of popular comedy developed in Italy during the 16th to 18th centuries, with stock characters such as Punchinello, Harlequin, and Columbine, in situations improvised from a plot outline
- commendation medal — a U.S. military decoration awarded for meritorious achievement or service
- commercial attache — an attaché in an embassy or legation representing the commercial interests of his or her country.
- commercial college — a college providing tuition in commercial skills, such as shorthand and book-keeping
- commercial vehicle — a vehicle for carrying goods or (less commonly) passengers
- committed facility — an agreement by a bank to provide a customer with funds up to a specified limit at a specified rate of interest
- commodity exchange — an exchange where commodities are traded
- common command set — (storage, standard) (CCS) Additional requirements and features for direct-access SCSI devices. In 1985 when the first SCSI standard was being finalised as an American National Standard, the X3T9.2 Task Group was approached by some manufacturers who wanted changes. Rather than delay the SCSI standard, X3T9.2 formed an ad hoc group to define CCS.
- common denominator — In mathematics, a common denominator is a number which can be divided exactly by all the denominators in a group of fractions.
- common user access — (programming) (CUA) The user interface standard of SAA.
- common wintergreen — a plant (Pyrola minor) of temperate and arctic regions, having rounded leaves and small pink globose flowers: family Pyrolaceae