9-letter words containing a, c, t, o
- cloth-cap — pertaining to or characteristic of the working class.
- clothyard — (historical) An old unit of measure for cloth, 36 or 37 inches.
- co-author — The co-authors of a book, play, or report are the people who have written it together.
- co-parent — a divorced or separated parent who shares equally with the other parent in the custody and care of a child.
- co-relate — to correlate.
- co-tenant — a joint tenant.
- coadapted — adapted to one another
- coadjutor — a bishop appointed as assistant to a diocesan bishop
- coadunate — united; joined together
- coagulant — a substance that aids or produces coagulation
- coagulate — When a liquid coagulates, it becomes very thick.
- coalition — A coalition is a government consisting of people from two or more political parties.
- coaration — Cooperative ploughing.
- coarctate — (of a pupa) enclosed in a hard barrel-shaped case (puparium), as in the housefly
- coastally — In a coastal manner.
- coastland — the land fringing a coast
- coastline — A country's coastline is the outline of its coast.
- coastward — towards the coast
- coastwise — along the coast
- coat card — face card.
- coat tree — clothes tree.
- coat-tail — the long tapering tails at the back of a man's tailed coat
- coatdress — a coatlike dress having a buttoned front and, usually, lapels and long sleeves
- coatracks — Plural form of coatrack.
- coatstand — a frame or pole equipped with hooks or arms for hanging up coats, etc
- coattails — If you do something on the coattails of someone else, you are able to do it because of the other person's success, and not because of your own efforts.
- coauthors — Plural form of coauthor.
- coaxation — (rare) The act of croaking.
- cobalt 60 — a radioactive isotope of cobalt having a mass number of 60 and a half-life of 5.2 years, used chiefly in radiotherapy.
- cobaltite — a rare silvery-white mineral consisting of cobalt arsenic sulphide in cubic crystalline form: a major ore of cobalt, used in ceramics. Formula: CoAsS
- cobaltous — of or containing cobalt in the divalent state
- cocainist — a cocaine addict
- cochleate — shaped like a snail's shell; spirally twisted
- cockateel — Archaic form of cockatiel.
- cockatiel — A cockatiel is a bird similar to a cockatoo that is often kept as a pet.
- cockatoos — Plural form of cockatoo.
- cockboats — Plural form of cockboat.
- cockmatch — a cockfight
- cocktails — Plural form of cocktail.
- cocoanuts — Plural form of cocoanut.
- cocreated — Simple past tense and past participle of cocreate.
- cocreator — someone who creates something jointly with another person or people
- cocurator — a fellow curator
- coeducate — Alternative spelling of co-educate.
- coelomata — animals possessing a coelom
- coelomate — an animal that possesses a coelom
- 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
- coeternal — existing together eternally
- coevality — The condition of being coeval.
- cofactors — Plural form of cofactor.