9-letter words containing o, a, s
- codenames — Plural form of codename.
- codeshare — (aviation) Agreement whereby an airline buys space on another airline and markets the extra space as its own. Often used to increase a route network without the costs of running a full service.
- coelostat — an astronomical instrument consisting of a plane mirror mounted parallel to the earth's axis and rotated about this axis once every two days so that light from a celestial body, esp the sun, is reflected onto a second mirror, which reflects the beam into a telescope
- coenosarc — a system of protoplasmic branches connecting the polyps of colonial organisms such as corals
- cofactors — Plural form of cofactor.
- cogitates — Third-person singular simple present indicative form of cogitate.
- cognisant — a frequent misspelling of cognizant.
- cohobates — Third-person singular simple present indicative form of cohobate.
- cokeheads — Plural form of cokehead.
- colanders — Plural form of colander.
- cold case — a police inquiry that has been suspended with the crime still unsolved
- cold cash — money paid in full at the time of a business transaction
- cold snap — A cold snap is a short period of cold and icy weather.
- coleslaws — Plural form of coleslaw.
- collagens — Plural form of collagen.
- collagist — a technique of composing a work of art by pasting on a single surface various materials not normally associated with one another, as newspaper clippings, parts of photographs, theater tickets, and fragments of an envelope.
- collapsar — a collapsed star, either a white dwarf, neutron star, or black hole
- collapsed — Simple past tense and past participle of collapse.
- collapses — Plural form of collapse.
- collators — Plural form of collator.
- colleages — Misspelling of colleagues.
- collinsia — a North American plant of the scrophulariaceous genus Collinsia, having blue, white, or purple flowers
- colobomas — Plural form of coloboma.
- colonials — Plural form of colonial.
- colorants — Plural form of colorant.
- colorcast — a television broadcast in color
- colorfast — A fabric that is colorfast has a color that will not get paler when the fabric is washed or worn.
- colorways — Plural form of colorway.
- colossian — a native or inhabitant of Colossae
- colostral — a yellowish liquid, especially rich in immune factors, secreted by the mammary gland of female mammals a few days before and after the birth of their young.
- combaters — Plural form of combater.
- comebacks — Plural form of comeback.
- comedians — Plural form of comedian.
- comitatus — a retinue of warriors serving a leader, esp in pre-Christian Germanic cultures, such as Anglo-Saxon England and Viking Age Scandinavia
- commandos — Plural form of commando.
- commatism — Conciseness in writing.
- commensal — (of two different species of plant or animal) living in close association, such that one species benefits without harming the other
- commissar — an official of the Communist Party responsible for political education, esp in a military unit
- compadres — Plural form of compadre.
- companies — Plural form of company.
- company's — a number of individuals assembled or associated together; group of people.
- compassed — Simple past tense and past participle of compass.
- compasses — Plural form of compass.
- complains — Third-person singular simple present indicative form of complain.
- compleats — Third-person singular simple present indicative form of compleat.
- comprisal — to include or contain: The Soviet Union comprised several socialist republics.
- conations — Plural form of conation.
- conclaves — A private meeting.
- conestoga — a large, heavy, broad-wheeled covered wagon, used especially for transporting pioneers and freight across North America during the early westward migration.
- conflates — Third-person singular simple present indicative form of conflate.