12-letter words containing o, c, a, s
- castile soap — a hard soap made from olive oil and sodium hydroxide
- casting vote — When a committee has given an equal number of votes for and against a proposal, the chairperson can give a casting vote. This vote decides whether or not the proposal will be passed.
- castor sugar — finely ground or powdered sugar.
- catacoustics — the branch of acoustics dealing with echoes and reflected sounds
- cataphoreses — Plural form of cataphoresis.
- cataphoresis — electrophoresis
- catastrophal — (rare) Catastrophic.
- catastrophes — Plural form of catastrophe.
- catastrophic — Something that is catastrophic involves or causes a sudden terrible disaster.
- catch points — railway points designed to derail a train running back in the wrong direction to prevent collision with a following train
- categorising — to arrange in categories or classes; classify.
- cater-cousin — a close friend
- cathode rays — a stream of electrons emitted from the surface of a cathode in a valve
- cattleperson — Someone who works with, or rears cattle.
- caught short — having a sudden need to urinate or defecate
- cauliflowers — Plural form of cauliflower.
- causationism — the theory of universal causation
- causationist — a person who believes in the theory of universal causation
- caustic soda — Caustic soda is a powerful chemical substance used to make strong soaps and clean drains.
- cautiousness — showing, using, or characterized by caution: a cautious man; To be cautious is often to show wisdom.
- cavaco silva — Aníbal (aˈnibal). born 1939, Portuguese statesman; prime minister (1985–95); president (2006–16)
- cedrelaceous — resembling or having the characteristics of a citron fruit
- celebrations — Plural form of celebration.
- centerboards — Plural form of centerboard.
- centimorgans — Plural form of centimorgan.
- ceratopsians — Plural form of ceratopsian.
- cerebrations — Plural form of cerebration.
- ceroplastics — the art of wax modelling
- cessationism — The concept, amongst most Christians, that the works of the Holy Spirit (speaking in tongues, prophecy, healing, and miracles) ceased at some point in history.
- cessationist — One who subscribes to cessationism.
- chaetiferous — having bristles
- chaetognaths — Plural form of chaetognath.
- chain smoker — person: smokes heavily
- chain-smoker — A chain-smoker is a person who chain-smokes.
- chairpersons — Plural form of chairperson.
- championship — A championship is a competition to find the best player or team in a particular sport.
- chaos theory — a theory, applied in various branches of science, that apparently random phenomena have underlying order
- chapter stop — any of several markers placed at intervals on a DVD film, enabling the viewer to find and select particular scenes
- chapterhouse — the building attached to a cathedral, collegiate church, or religious house in which the chapter meets
- charity shop — A charity shop is a shop that sells used goods cheaply and gives its profits to a charity.
- charity toss — a free shot given as a penalty for a foul
- charlesbourg — city in S Quebec, Canada: pop. 71,000
- charm school — a school teaching manners and social skills
- charnelhouse — Alternative form of charnel house.
- charterhouse — a Carthusian monastery
- chasmogamous — pertaining to or having pollination occur in a fully opened flower.
- chatterboxes — Plural form of chatterbox.
- chaulmoogras — Plural form of chaulmoogra.
- cheese board — A cheese board is a board from which cheese is served at a meal.
- cheeseboards — Plural form of cheeseboard.